Heni, Martin; Ketterer, Caroline; Wagner, Róbert; Linder, Katarzyna Helena; Böhm, Anja Andrea; Herzberg-Schäfer, Silke A.; Machicao, Fausto; Knoch, Klaus-Peter; Fritsche, Andreas Erwin; Staiger, Harald; Häring, Hans-Ulrich
(Public Library Science, 2012)