@article {1990,
	title = {Algebraic differential calculus for gauge theories},
	journal = {Nuclear Phys. B. Proc. Suppl. 18A (1990), 171},
	number = {SISSA;135/89/FM},
	year = {1990},
	publisher = {SISSA Library},
	doi = {10.1016/0920-5632(90)90649-F},
	url = {http://hdl.handle.net/1963/891},
	author = {Giovanni Landi and Giuseppe Marmo}
}
