@article{10_37236_7306, author = {Katarzyna Kril and Wojciech M{\l}otkowski}, title = {Permutations of type {\(B\)} with fixed number of descents and minus signs}, journal = {The electronic journal of combinatorics}, year = {2019}, volume = {26}, number = {1}, doi = {10.37236/7306}, zbl = {1409.05011}, url = {http://geodesic.mathdoc.fr/articles/10.37236/7306/} }