author = { Gustafsson, Stig-Inge },

title = { A computer model for optimal energy retrofits in multi-family buildings the opera model },

publisher = {Swedish Council for Building Research},

isbn = {9154052556},

keywords = { Bauwesen , Energieeinsparung , Wohnungsbau , Wärmerückgewinnung },

year = {1990},

abstract = {Literaturverz. S. 109 - 116},

booktitle = {Document / Swedish Council for Building Research ; 1990,21},

address = { Stockholm },

url = { http://slubdd.de/katalog?TN_libero_mab2 }