@article{CRMATH_2016__354_7_671_0,
     author = {Toshiyuki Kobayashi and Toshihisa Kubo and Michael Pevzner},
     title = {Classification of differential symmetry breaking operators for differential forms},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {671--676},
     publisher = {Elsevier},
     volume = {354},
     number = {7},
     year = {2016},
     doi = {10.1016/j.crma.2016.04.012},
     language = {en},
}