@misc{Mueller-Langer_2010,
 author = {M{\"u}ller-Langer, Frank and Watt, Richard},
 date = {01.01.2010},
 title = {Copyright and Open Access for Academic Works},
 url = {http://ideas.repec.org/p/pra/mprapa/24095.html},
 urldate = {2014-08-25},
 year = {2010},
 number = {24095},
 institution = {{University Library of Munich, Germany}}
}