Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSpectral and bispectral analysis for single- and multiple-input nonlinear phreatic aquifer systems.AuthorsJin, Minghui; Duffy, Christopher J.PublicationWater Resources Research, 1994, Vol 30, Issue 7, p2073ISSN0043-1397Publication typeArticleDOI10.1029/93WR03103