Edward L. Ullman

2.4k total citations
23 papers, 716 citations indexed

About

Edward L. Ullman is a scholar working on Geography, Planning and Development, Economics and Econometrics and Building and Construction. According to data from OpenAlex, Edward L. Ullman has authored 23 papers receiving a total of 716 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Geography, Planning and Development, 3 papers in Economics and Econometrics and 3 papers in Building and Construction. Recurrent topics in Edward L. Ullman's work include Geographic Information Systems Studies (4 papers), Regional Economics and Spatial Analysis (3 papers) and Urban Design and Spatial Analysis (2 papers). Edward L. Ullman is often cited by papers focused on Geographic Information Systems Studies (4 papers), Regional Economics and Spatial Analysis (3 papers) and Urban Design and Spatial Analysis (2 papers). Edward L. Ullman collaborates with scholars based in United States. Edward L. Ullman's co-authors include Michael F. Dacey, Ronald R. Boyce, Harold M. Mayer, Harold Brodsky and Chauncy D. Harris and has published in prestigious journals such as Geographical Journal, Economic Geography and Transactions of the Institute of British Geographers.

In The Last Decade

Edward L. Ullman

22 papers receiving 586 citations

Peers

Edward L. Ullman
Harvey S. Perloff United States
Maurice Yeates Canada
Joseph Airov United States
Frank E. Horton United States
Ira S. Lowry United States
Walter Christaller Germany
Peter L. Owens United Kingdom
Wayne K.D. Davies Canada
Antoine Bailly Switzerland
Howard A. Stafford United States
Harvey S. Perloff United States
Edward L. Ullman
Citations per year, relative to Edward L. Ullman Edward L. Ullman (= 1×) peers Harvey S. Perloff

Countries citing papers authored by Edward L. Ullman

Since Specialization
Citations

This map shows the geographic impact of Edward L. Ullman's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Edward L. Ullman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Edward L. Ullman more than expected).

Fields of papers citing papers by Edward L. Ullman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Edward L. Ullman. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Edward L. Ullman. The network helps show where Edward L. Ullman may publish in the future.

Co-authorship network of co-authors of Edward L. Ullman

This figure shows the co-authorship network connecting the top 25 collaborators of Edward L. Ullman. A scholar is included among the top collaborators of Edward L. Ullman based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Edward L. Ullman. Edward L. Ullman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ullman, Edward L., et al.. (1982). Geography as Spatial Interaction. Geographical Journal. 148(3). 381–381. 62 indexed citations
2.
Ullman, Edward L., et al.. (1981). Geography as Spatial Interaction. Economic Geography. 57(3). 270–270. 67 indexed citations
3.
Ullman, Edward L., et al.. (1978). A man for all regions : the contributions of Edward L. Ullman to geography. Medical Entomology and Zoology. 7 indexed citations
4.
Ullman, Edward L.. (1974). Space and/or Time: Opportunity for Substitution and Prediction. Transactions of the Institute of British Geographers. 125–125. 14 indexed citations
5.
Ullman, Edward L.. (1973). ECOLOGY AND SPATIAL ANALYSIS. Annals of the Association of American Geographers. 63(2). 272–274. 2 indexed citations
6.
Ullman, Edward L., Michael F. Dacey, & Harold Brodsky. (1971). The economic base of American cities : profiles for the 101 metropolitan areas over 250,000 population based on minimum requirements for 1960. Medical Entomology and Zoology. 5 indexed citations
7.
Ullman, Edward L.. (1968). Minimum Requirements after a Decade: A Critique and an Appraisal. Economic Geography. 44(4). 364–364. 13 indexed citations
8.
Ullman, Edward L.. (1962). Presidential address: The nature of cities reconsidered. Papers of the Regional Science Association. 9(1). 7–23. 17 indexed citations
9.
Ullman, Edward L.. (1962). PRESIDENTIAL ADDRESS: THE NATURE OF CITIES RECONSIDERED. Papers of the Regional Science Association. 9(1). 7–23. 15 indexed citations
10.
Ullman, Edward L.. (1960). Trade Centers and Tributary Areas of the Philippines. Geographical Review. 50(2). 203–203. 13 indexed citations
11.
Ullman, Edward L. & Michael F. Dacey. (1960). THE MINIMUM REQUIREMENTS APPROACH TO THE URBAN ECONOMIC BASE. Papers of the Regional Science Association. 6(1). 175–194. 102 indexed citations
12.
Mayer, Harold M. & Edward L. Ullman. (1959). American Commodity Flow: A Geographical Interpretation of Rail and Water Traffic Based on Principles of Spatial Interchange. Geographical Review. 49(1). 142–142. 16 indexed citations
13.
Ullman, Edward L., et al.. (1958). American Commodity Flow. Economic Geography. 34(3). 279–279. 21 indexed citations
14.
Ullman, Edward L., et al.. (1957). American Commodity Flow. Land Economics. 33(4). 369–369. 26 indexed citations
15.
Ullman, Edward L.. (1954). AMERICAN COUNCIL OF LEARNED SOCIETIES. The Professional Geographer. 6(2). 26–26.
16.
Ullman, Edward L.. (1954). Amenities as a Factor in Regional Growth. Geographical Review. 44(1). 119–119. 167 indexed citations
17.
Ullman, Edward L.. (1953). Human Geography and Area Research. Annals of the Association of American Geographers. 43(1). 54–54. 2 indexed citations
18.
Ullman, Edward L.. (1953). Human Geography and area Research. Annals of the Association of American Geographers. 43(1). 54–66. 33 indexed citations
19.
Ullman, Edward L.. (1953). ARE MOUNTAINS ENOUGH?. The Professional Geographer. 5(4). 5–8. 1 indexed citations
20.
Ullman, Edward L.. (1951). Rivers as Regional Bonds: The Columbia-Snake Example. Geographical Review. 41(2). 210–210. 6 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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