@book{+1914,
url = {https://doi.org/10.1515/9783111519838},
title = {Ernst Haeckel im Bilde},
title = {Eine physiognomische Studie zu seinem 80. Geburtstage},
editor = {Walther Haeckel and Wilhelm Bölsche},
publisher = {De Gruyter},
address = {Berlin, Boston},
doi = {doi:10.1515/9783111519838},
isbn = {9783111519838},
year = {1914},
lastchecked = {2026-05-07}
}