@book{HeinrichHollMenzeletal.2009, author = {Hartmut Heinrich and Friedrich-L. Holl and Katharina Menzel and Jan Tobias M{\"u}hlberg and Ingo Sch{\"a}fer and Hanno Sch{\"u}ngel}, title = {Metastudie: Open-Source-Software und ihre Bedeutung f{\"u}r Innovatives Handeln}, year = {2009}, }