@misc
{TN_libero_mab2,
author = {
Dummit, David S.
},
title = {
Classes of order 4 in the strict class group of number fields and remarks on unramified quadratic extensions of unit type
},
publisher = {Springer Science and Business Media LLC},
isbn = {2195-4755},
isbn = {2195-4763},
keywords = {
General Mathematics
},
year = {2019},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}