A. Stephen

572 total citations
4 papers, 505 citations indexed

About

A. Stephen is a scholar working on Organic Chemistry, Mechanical Engineering and Molecular Biology. According to data from OpenAlex, A. Stephen has authored 4 papers receiving a total of 505 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Organic Chemistry, 2 papers in Mechanical Engineering and 1 paper in Molecular Biology. Recurrent topics in A. Stephen's work include Catalysis and Hydrodesulfurization Studies (2 papers), Catalytic Alkyne Reactions (1 paper) and Coal Properties and Utilization (1 paper). A. Stephen is often cited by papers focused on Catalysis and Hydrodesulfurization Studies (2 papers), Catalytic Alkyne Reactions (1 paper) and Coal Properties and Utilization (1 paper). A. Stephen collaborates with scholars based in Germany and Canada. A. Stephen's co-authors include A. Stephen K. Hashmi, Julia M. Foght, Sushanta K. Mitra, Jeremiah Shuster, Gordon Southam, David S. Nobes, Karen Budwill, M. Wölfle, Matthias Rudolph and Sascha Schäfer and has published in prestigious journals such as The Journal of Organic Chemistry, RSC Advances and Gold bulletin.

In The Last Decade

A. Stephen

4 papers receiving 497 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
A. Stephen Germany 3 429 109 99 90 40 4 505
Yulin Hu China 13 282 0.7× 65 0.6× 57 0.6× 20 0.2× 57 1.4× 32 371
Ryuji Ogawa Japan 9 638 1.5× 106 1.0× 26 0.3× 33 0.4× 41 1.0× 10 769
A.S. Hirschon United States 12 141 0.3× 41 0.4× 102 1.0× 129 1.4× 39 1.0× 35 341
Lübo Cheng China 12 219 0.5× 55 0.5× 87 0.9× 76 0.8× 96 2.4× 21 420
H. L. Hsieh United States 13 373 0.9× 70 0.6× 88 0.9× 28 0.3× 15 0.4× 25 531
Heriberto Díaz Velázquez Mexico 10 389 0.9× 145 1.3× 63 0.6× 32 0.4× 54 1.4× 16 529
Juanita Cassidy United States 14 248 0.6× 168 1.5× 102 1.0× 50 0.6× 4 0.1× 38 446
Lillian A. Rankel United States 11 276 0.6× 184 1.7× 38 0.4× 60 0.7× 14 0.3× 14 400
Beatriz Calvo Spain 12 129 0.3× 90 0.8× 83 0.8× 42 0.5× 26 0.7× 29 428
Т. Г. Черкасова Russia 9 165 0.4× 192 1.8× 78 0.8× 43 0.5× 19 0.5× 86 339

Countries citing papers authored by A. Stephen

Since Specialization
Citations

This map shows the geographic impact of A. Stephen'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 A. Stephen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. Stephen more than expected).

Fields of papers citing papers by A. Stephen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. Stephen. 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 A. Stephen. The network helps show where A. Stephen may publish in the future.

Co-authorship network of co-authors of A. Stephen

This figure shows the co-authorship network connecting the top 25 collaborators of A. Stephen. A scholar is included among the top collaborators of A. Stephen 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 A. Stephen. A. Stephen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

4 of 4 papers shown
1.
Stephen, A., Jeremiah Shuster, Gordon Southam, et al.. (2014). Bioconversion of coal: new insights from a core flooding study. RSC Advances. 4(43). 22779–22779. 36 indexed citations
2.
Stephen, A., A. Stephen K. Hashmi, Jan W. Bats, et al.. (2007). Gold catalysis: News from the homogeneous wing. Gold bulletin. 40(1). 31–35. 10 indexed citations
3.
Stephen, A. & A. Stephen K. Hashmi. (2004). Homogeneous catalysis by gold. Gold bulletin. 37(1-2). 51–65. 458 indexed citations
4.
Stephen, A., et al.. (1961). Notes. Some Glycosyl Derivatives of Piperazine. The Journal of Organic Chemistry. 26(2). 601–603. 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.

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2026