Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Dynamic life cycle assessment (LCA) of renewable energy technologies
This map shows the geographic impact of Martin Pehnt'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 Martin Pehnt with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Martin Pehnt more than expected).
This network shows the impact of papers produced by Martin Pehnt. 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 Martin Pehnt. The network helps show where Martin Pehnt may publish in the future.
Co-authorship network of co-authors of Martin Pehnt
This figure shows the co-authorship network connecting the top 25 collaborators of Martin Pehnt.
A scholar is included among the top collaborators of Martin Pehnt 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 Martin Pehnt. Martin Pehnt is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Bauer, M. L., et al.. (2010). Aluminium and Renewable Energy Systems - Prospects for the Sustainable Generation of Electricity and Heat.11 indexed citations
Nitsch, Joachim, Stephan Schmid, Peter Viebahn, et al.. (2006). Entwicklung einer Gesamtstrategie zur Einführung alternativer Kraftstoffe, insbesondere regenerativ erzeugten Wasserstoffs. elib (German Aerospace Center).3 indexed citations
11.
Pehnt, Martin. (2005). Dynamic life cycle assessment (LCA) of renewable energy technologies. Renewable Energy. 31(1). 55–71.496 indexed citations breakdown →
Pehnt, Martin. (2002). Ganzheitliche Bilanzierung von Brennstoffzellen in der Energie- und Verkehrstechnik.16 indexed citations
16.
Langniß, Ole, Joachim Nitsch, Martin Pehnt, & Franz Trieb. (2000). Erneuerbare Energien und Nachhaltige Entwicklung. elib (German Aerospace Center).3 indexed citations
17.
Pehnt, Martin. (2000). Life Cycle Assessment of Fuel Cells and Relevant Fuel Chains. elib (German Aerospace Center).2 indexed citations
18.
Pehnt, Martin, et al.. (2000). Life Cycle Assessment of Innovative Hydrogen Production Path. elib (German Aerospace Center).1 indexed citations
19.
Pehnt, Martin, et al.. (1998). Ökologische und ökonomische Bewertung von PEFC-BHKW am Beispiel einer Nahwärmeversorgung. elib (German Aerospace Center). 97(24). 50–53.1 indexed citations
20.
Pehnt, Martin. (1998). Life Cycle Assessment of Biomass Fuels for Fuel Cell and Engine Combined Heat and Power (CHP) Production (Poster). elib (German Aerospace Center).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.