Research trends in proton exchange membrane fuel cells during 2008–2018: A bibliometric analysis - Yonoff, Rony Escobar; Ochoa, Guillermo Valencia; Cardenas-Escorcia, Yulineth; Silva-Ortega, Jorge Iván; Meriño-Stand, Lourdes (Heliyon, 2019)
Keywords: bibliometric analysis; China; Energy; fuel cells; Germany; South Korea; South Korea; China; Germany; Energy