@article {2007,
	title = {Quasistatic evolution problems for pressure-sensitive plastic materials},
	journal = {Milan J. Math. 75 (2007) 117-134},
	number = {SISSA;27/2007/M},
	year = {2007},
	abstract = {We study quasistatic evolution problems for pressure-sensitive plastic materials in the context of small strain associative perfect plasticity.},
	doi = {10.1007/s00032-007-0071-y},
	url = {http://hdl.handle.net/1963/1962},
	author = {Gianni Dal Maso and Alexey Demyanov and Antonio DeSimone}
}
