@article{MM2_1989__65_3_155435,
     author = {Reinhold H\"ubl},
     title = {On the {Transitvity} of regular differential {Forms.}},
     journal = {Manuscripta mathematica},
     pages = {213--224},
     publisher = {mathdoc},
     volume = {65},
     number = {3},
     year = {1989},
     zbl = {0704.13004},
     url = {http://geodesic.mathdoc.fr/item/MM2_1989__65_3_155435/}
}