@book{ 0-1402609744, title = {Iagttagelser over nogle Siphonophoren: md tre Kobbertavler; avec un résumé francais}, author = {Müller, Peter Erasmus}, address = {Kjøbenhavn}, publisher = {Lund}, year = {1871}, language = {Swedish}, url = {https://katalog.ub.uni-leipzig.de/Record/0-1402609744} }