@book{+1987,
url = {https://doi.org/10.1515/9783110858020},
title = {Volume 1},
publisher = {De Gruyter Mouton},
address = {Berlin, Boston},
doi = {doi:10.1515/9783110858020},
isbn = {9783110858020},
year = {1987},
lastchecked = {2026-04-29}
}