@article{GMJ_2002__9_4_51135,
     author = {Lambe, Larry A. and Seiler, Werner M.},
     title = {Differential equations, {Spencer} cohomology, and computing resolutions.},
     journal = {Georgian mathematical journal},
     pages = {723--774},
     year = {2002},
     volume = {9},
     number = {4},
     zbl = {1054.58010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2002__9_4_51135/}
}