Unicity of graded covers of the category $\mathcal{O}$ of Bernstein–Gelfand–Gelfand
Crossref DOI link: https://doi.org/10.1007/s11512-014-0211-x
Published Print: 2015-10
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Rottmaier, Michael
Soergel, Wolfgang