Peter Sonnenfeld
Keith G. Papke
Grant D. Mossop
Werner Franz Baumann
Alain Curial
Convegno "Siti minerari dismessi e fenomeni di degrado in rocce evaporitiche" (2007 Bergamo, Italy)
D. J. Borns
Bernhard Knipping
A. L. I︠A︡nshin
Unknown Author
Douglas W. Kirkland
Hermann Borchert
Gilbert Maglione
Norbert Trauth
W. C. Smith
Michigan Basin Geological Society. Field Conference