@book{Summers+2019,
url = {https://doi.org/10.3790/9783428474271},
title = {Essays on the Nature of Law and Legal Reasoning},
title = {},
author = {Robert S. Summers},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428474271},
isbn = {9783428474271},
year = {1992},
lastchecked = {2019}
}