[For the entire collection see Zbl 0742.00067.]This paper is devoted to a method permitting to determine explicitly all multilinear natural operators between vector-valued differential forms and between sections of several other natural vector bundles.
@article{701484,
title = {Natural operators between vector valued differential forms},
booktitle = {Proceedings of the Winter School "Geometry and Physics"},
series = {GDML\_Books},
publisher = {Circolo Matematico di Palermo},
address = {Palermo},
year = {1991},
pages = {[113]-121},
mrnumber = {MR1151896},
zbl = {0759.58052},
url = {http://dml.mathdoc.fr/item/701484}
}
Cap, Andreas. Natural operators between vector valued differential forms, dans Proceedings of the Winter School "Geometry and Physics", GDML_Books, (1991), pp. [113]-121. http://gdmltest.u-ga.fr/item/701484/