L. Federico & L. Crispini & G. Capponi (...)

Neotectonics and Tectonics and Seismology (1)

И. А. Чарный

Космология (1)

Paolo DellAversana & Charles Sanders Peirce

Экономическая и социальная география (1)

Tivadar M. Toth

Technique and technology of exploration works (1)