@book{holl:innovationsverhalten,
 title     = {{Forschungsbericht: Innovationsverhalten deutscher
              Software-Entwicklungsunternehmen}},
 author    = {Friedrich Holl and Katharina Menzel and Peter Morcinek and
              Jan Tobias M{\"u}hlberg and Ingo Sch{\"a}fer and
              Hanno Sch{\"u}ngel},
 publisher = {Friedrich Holl, self-published},
 address   = {Berlin, Germany},
 year      = 2006,
 note      = {The study has been commissioned by the Federal Ministry
              of Education and Research of Germany.}
}