By Melrose, Andrew, Bandlow, Katja
By Marieb, Elaine N.; Hoehn, Katja, ElaineMarieb, Hoehn
By Marieb, Elaine N., Hoehn, Katja
By Franko Aas, Katja
By Bartelmus, Alexa, Sternitzke, Katja
By Harper, Damian, Fallon, Stephen, Gaskell, Katja, Grundvig, Julie, Heller, Carolyn B., Huhti, Thomas, Mayhew, Bradley, Pitts, Christopher, Lonely Planet Publications Ltd
By Verbruggen, Katja, Hoogvorst, Welmoed
By Elaine Nicpon Marieb, Marieb, Elaine Nicpon, Hoehn, Katja
By Lange-Muller, Katja
By Salinas de Frías, Ana Maria, Samuel, Katja, White, Nigel
By Steinert, Fiona, Peissl, Helmut, Weiss, Katja
By Malby-Anthony, Françoise, Willemsen, Katja