@article {1988,
	title = {Variational inequalities for the biharmonic operator with variable obstacles.},
	journal = {Ann. Mat. Pura Appl. (4)  153  (1988), 203-227 (1989)},
	number = {SISSA;50/87/M},
	year = {1988},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/531},
	author = {Gianni Dal Maso and Gabriella Paderni}
}
@article {1987,
	title = {Integral representation of some convex local functionals.},
	journal = {Ricerche Mat. 36  (1987), no. 2, 197-214},
	number = {SISSA;15/87/M},
	year = {1987},
	publisher = {SISSA Library},
	url = {http://hdl.handle.net/1963/497},
	author = {Gianni Dal Maso and Gabriella Paderni}
}
