@book{
title = {Frohes Lernen },
author = {Eckl, Gisela},
editor = {Kemper, Marianne},
editor = {Steinhäuser, Anita},
editor = {Tit. dalla cop },
editor = {Il compl. del tit. precede il tit },
editor = {Nome degli A. dal colophon },
year = {2001},
address = {Leipzig [etc.] },
publisher = {Klett},
}