Kraepelin, E. I 226, 235, 304; II [33], [61], [83].

Krückmann II [54].

Kuczynski II [152].

Kuhn II [132].

Laitinen II [33].

Lapouge II [63], [235].

Larsson I 300; II [237].

Laughlin II [127], [131].

Lenz, F. I 301; II [234], [236].

Lombroso, C. I 281, 305; II [59], [68], [69], [234].