“Service-Oriented Structures Are Not an End in Themselves; [Serviceorientierte Strukturen Sind Kein Selbstzweck]”. Gis.Business | Issn : 1869-9286, vol. 22, no. 1, Jan. 2021, pp. 18-19, https://journal-gis.business/index.php/gisb/article/view/632.