URLDate
Verified
Extra Software
Requirements
(if any)
Access
Conditions
Notes
http://dx.doi.org/10.1016/0169-2046(88)90022-9DOI Link
http://ac.els-cdn.com/0169204688900229/1-s2.0-0169[...]08/02/2012 PDF Reader Item is within a limited-access website
http://www.sciencedirect.com/science/article/pii/0[...]12/15/2016PDF ReaderItem is within a limited-access website