Heldbjerg, Henning; Fox, Anthony D.; Lehikoinen, Aleksi; Sunde, Peter; Aunins, Ainars; Balmer, Dawn E.; Calvi, Gianpiero; Chodkiewicz, Tomasz; Chylarecki, Przemek; Escandell, Virginia; Foppen, Ruud; Gamero, Anna; Hristov, Iordan; Husby, Magne; Jiguet, Frédéric; Kmecl, Primoz; Kålås, John Atle; Lewis, Lesley J.; Lindström, Åke; Moshøj, Charlotte; Nellis, Renno; Paquet, Jean-Yves; Portolou, Danae; Ridzon, Jozef; Schmid, Hans; Skorpilova, Jana; Szabó, Zoltan D.; Szép, Tibor; Teufelbauer, Norbert; Trautmann, Sven; van Turnhout, Chris; Vermouzek, Zdenek; Vorisek, Petr; Weiserbs, Anne (Peer reviewed; Journal article, 2019)