|
REFERENCES
|
R. Bott, L. W. Tu, Differential forms in algebraic topology, New York: Springer, 1982.
Branko Malesevic, Some combinatorial aspects of differential operation composition on the space R^n, Univ. Beograd, Publ. Elektrotehn. Fak., Ser. Mat. 9 (1998), 29-33.
|