This map shows the geographic impact of Tim Knowles'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 Tim Knowles with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Tim Knowles more than expected).
This network shows the impact of papers produced by Tim Knowles. 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 Tim Knowles. The network helps show where Tim Knowles may publish in the future.
Co-authorship network of co-authors of Tim Knowles
This figure shows the co-authorship network connecting the top 25 collaborators of Tim Knowles.
A scholar is included among the top collaborators of Tim Knowles 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 Tim Knowles. Tim Knowles 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.
Campbell, Rod & Tim Knowles. (2011). The economic impacts of losing livestock in a disaster..4 indexed citations
2.
Knowles, Tim, et al.. (2001). The Globalization of Tourism and Hospitality: A Strategic Perspective. Medical Entomology and Zoology.38 indexed citations
Knowles, Tim, et al.. (1999). Preplant Micronutrient Fertilizers for Cotton. UA Campus Repository (The University of Arizona).2 indexed citations
6.
Knowles, Tim. (1999). Tourism, Development and Growth: the Challenge of Sustainability. Tourism Analysis. 4(2). 130–132.3 indexed citations
7.
Knowles, Tim, et al.. (1999). Late Season Nitrogen Fertilizer for Cotton. UA Campus Repository (The University of Arizona).1 indexed citations
8.
Knowles, Tim, et al.. (1999). Narrow Row Cotton Production in Vicksberg. UA Campus Repository (The University of Arizona).1 indexed citations
9.
Knowles, Tim, et al.. (1998). Effect of Granular Norflurazon (Zorial 5G) on Alfalfa Establishment in Parker Valley. UA Campus Repository (The University of Arizona).
10.
Knowles, Tim, et al.. (1998). Winter Forage Cover Crop Trials. UA Campus Repository (The University of Arizona).
11.
Knowles, Tim, et al.. (1998). Agronomic Evaluations of New Transgenic and Non Transgenic Cotton Varieties in La Paz and Mohave Counties. UA Campus Repository (The University of Arizona).
12.
Knowles, Tim & Michael J. Ottman. (1997). Sudangrass Hay Production in the Irrigated Deserts of Arizona and California. UA Campus Repository (The University of Arizona).4 indexed citations
13.
Knowles, Tim, et al.. (1994). The strategic importance of CRSs in the airline industry.. Travel and Tourism Analyst. 4. 4–16.7 indexed citations
14.
Pizam, Abraham, Tim Knowles, Cyrus Cooper, & Andrew Lockwood. (1994). The European hotel industry.. 283–295.1 indexed citations
Knowles, Tim, et al.. (1989). Interpretation of Basal Stem Nitrate-N Concentrations for Improved Nitrogen Management in Irrigated Durum Wheat Production. UA Campus Repository (The University of Arizona).2 indexed citations
17.
Doerge, Thomas A., et al.. (1989). Effects of Early Season Nitrogen Rates on Stem Nitrate Levels and Nitrogen Fertilizer Requirements During Grain Filling for Irrigated Durum Wheat. UA Campus Repository (The University of Arizona).2 indexed citations
18.
Knowles, Tim, et al.. (1988). Effects of P Applications on Wheat Tissue Phosphate Levels and Grain Production in Graham County. UA Campus Repository (The University of Arizona).
19.
Knowles, Tim, et al.. (1987). Effects of N and P Applications on Wheat Stem Nitrate and Phosphate Levels, and Grain Production in Graham County. UA Campus Repository (The University of Arizona).1 indexed citations
20.
Knowles, Tim, et al.. (1987). Standardization of the Wheat Stem Tissue NO₃-N Procedure. UA Campus Repository (The University of Arizona).1 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.