Upward groundwater flow in boils as the dominant mechanism of salinization in deep polders, The Netherlands de Louw, P. G. B. ; Oude Essink, G. H. P. ; Stuyfzand, P. J. ; van der Zee, S. E. A. T. M. Abstract Publication: Journal of Hydrology Pub Date: December 2010 Bibcode: 2010JHyd..395..494D