@book{Leinfellner+Leinfellner+2020,
url = {https://doi.org/10.3790/9783428440771},
title = {Ontologie, Systemtheorie und Semantik},
title = {},
author = {Elisabeth LeinfellnerWerner Leinfellner},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428440771},
isbn = {9783428440771},
year = {1978},
lastchecked = {2020}
}