Late ancient and medieval population.

von Russell, J.C
Transactions of the American Philosophical Society N.S. 48,3
Philadelphia : The American philosophical society, [c1958].
Umfang/Format: 152 p. ; 30 cm.

Birth control in the ancient world.

von Riddle, J.M
Veröffentlicht in Archaeology, 47,2.1994
1994.
Umfang/Format: 29-35, Abb.