Autori

• Werner E. Celnik (1) 

  Albert Asensio (1) Albert Asensio (1) Albert Asensio (1) Albert Asensio (1) Aleksandra Mizielińska, Daniel Mizieliński (1) Alfred Handel (1) Alice James (1) Alin Rosca (3) Alison Edgson, Kathryn White - Litera mică (1) Andrea Erne (1) Andrea Pinnington (1) Anita van Saan (5) Anne Ebert (1) Caz Buckinkham (1) Centrul National pentru Dezvoltare Durabilă (1) Da-Fanny (1) Eleonora Barsotti (1) Emily Bone (1) Eva Eich (1) Florentina Florescu (1) Florin Bican (3) Gabby Dawnay (1) Hermann-Michael Hahn (1) Horatiu Popa (1) Ioana Popa (1) Judith Papp (2) Kasia Dudziuk, Megan Higgins (1) Katalin Kelemen (2) Ken Jennings (1) Klaus M. Schittenhelm (1) Lucy Brownridge (1) Magali Clavelet (1) Maria Carmen Soria (2) Matthew Oldham (1) Milvus (1) Minna Lacey, Abigail Wheatley (1) National Park Service (1) Paul Hac (1) Renzo Barsotti (1) Rotraut Susanne Berner (5) Susanne Gernhauser (1) Sylvie Baussier (1) Tibor Hartel (1) Ute E. Zimmer (1) Valerie Guidoux (1) Volker Dierschke (1) Wilhelm Eisenreich (1) WWF Romania (1) Yuval Zommer (1)