A reviewer in "Environmental Conservation" said about the Lohnert/Geist book: "... there is a lot of good material in here, which many ecologists should read ...
Helmut Frohnhofen
Helmut Moritz
Helmut Löffler
Helmut Lecheler
Helmut Ahlborn
Helmut Winkler
Helmut Degen
Helmut Matt
Helmut Achatz
Helmut Koziolek
Helmut Koch
Helmut Graßhoff
Helmut Schaaf
Helmut Kogel
Helmut Hasse
Helmut Köster
Helmut Schwerdtfeger
Helmut Schneider
Helmut Lecheler
Helmut Thielicke
Helmut Hasse
Helmut Günther Schneider
Helmut Schwarz
Helmut Neuhaus
Helmut Hügel
Helmut Thielicke
T W Geist
Helmut Schneider
Helmut Stelter
Helmut Koziolek
Helmut Friemel
Christina Geist
Helmut Sauter
Helmut Richter
Helmut M. Kinelly
Helmut Bley
Helmut P. Aust
Helmut Schleppend
Helmut Bley
Helmut Kury
Helmut Schiessel
Helmut Fischer
Helmut Günther
Philip Lymbery
Eben Goodale
Cathleen Burnham
Nelson Yomtov
Richard Girling
Pam Holden
Tammy Gagne
Nancy C. Dorian
Andrea Olive
Akita-ken (Japan). Shizen Hogoka
William B. Rice
Anders Melin
Douglas Adams
Shimane-ken (Japan). Shizen Kankyōka
Bloomsbury
Myūjiamu Pāku Ibaraki-ken Shizen Hakubutsukan
Fen Montaigne
Donelle N. Dreese
V. Gnanasundaram
V. Gnanasundaram
Todd McLeish
John A. Bissonette
Betts, C. J.
Danielle Lippe
John D. Pilgrim
United States. Government Accountability Office
Tobias Hellenbroich
V. V. Gorobeĭko
I︠U︡. P. Fedotov
G. I︠U︡ Konechnai︠a︡
A. S. Sorokin
Ōita-ken Shizen Kankyō Gakujutsu Chōsakai. Yasei Seibutsu Senmon Bukai
Sun shi
Allan Fowler
Roberts, Russell
V. A. Nechitaĭlo
Elaine Horstmyer
Margret Binot-Hafke
Nature Protection Trust of Seychelles. Scientific Committee
Toni M. McLellan
Candace J. Cummings
Georgene Griffin
Cyrille de Klemm