Hougaard, Søren. The Business Idea The Early Stages of Entrepreneurship / [electronic resource] : by Søren Hougaard. - Berlin, Heidelberg : Springer Berlin Heidelberg, 2005. - digital. ISBN: 9783540269595 Standard No.: 10.1007/b138370 doi Subjects--Topical Terms: Economics.Marketing.Entrepreneurship.Economics/Management Science.Entrepreneurship.Management.Marketing. LC Class. No.: HB615 Dewey Class. No.: 658.421