@article{MM2_1972__7_154112,
     author = {Robin Hartshorne},
     title = {Algebraic de {Rham} {Cohomology.}},
     journal = {Manuscripta mathematica},
     pages = {125--140},
     publisher = {mathdoc},
     volume = {7},
     year = {1972},
     zbl = {0237.14008},
     url = {http://geodesic.mathdoc.fr/item/MM2_1972__7_154112/}
}