Jan P. Lamprecht
Jan P. Lamprecht has written at least 1 book. Their most popular book is Hollow Planets: A Feasibility Study of Possible Hollow Worlds - Could the Planets Mercury, Venus and Earth Possibly be Hollow? with 1 save with an average rating of -⭐.
 Hollow Planets Hollow Planets: A Feasibility Study of Possible Hollow Worlds - Could the Planets Mercury, Venus and Earth Possibly be Hollow?
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