Listování
od 

Libyan Petroleum Institute : Forschungsinstitut und Naturmuseum Senckenberg
Liege University
Lisabon University
Lisbon University
Lithuanian Academy of Sciences
Littera
LNEG
Logabook
Logos
LPI
LPI/JSC Center for Lunar Science and Exploration
Lucerna Praha, a. s.
LudwigMaxmilian Universitat
Lunar and Planetary Institute
Lunar Planetary Institute
Lund University
Lund University - Department of geology
Luzycka Kopalnia Bazaltu Ksieginki S. A. w Lubaniu
M D P I AG
M. Kralik, H. Hausler, C. Kolesar