Charles Kay
Heinz Ellenberg
Nathalie Pettorelli
Stefano Mazzoleni
Dominique Bachelet
David J. Tongway
H. H. Shugart
Scott J. Meiners
F. A. Bazzaz
Jan Marek Matuszkiewicz
J. White
Derek Eamus
Miles, John
Stephen F. Arno
Hansjörg Küster
Jonathan W. Silvertown
Petr Dmitrievich Gunin
S. M. Razumovskiĭ
YA Pamphlet Collection (Library of Congress)