Amorocho, J. and Hart, W.C.1964: A critique of current methods in hydrologic systems investigations . Transactions of the American Geophysical Union45, 307-21.
2.
Anderson, M.G. and Burt, T.P.1977: Automatic monitoring of soil moisture conditions in a hillslope spur and hollow. Journal ofHydrology33, 27-36.
3.
Burt, T.P.1978: Runoff processes in a small catchment with special reference to the role of hillslope hollows. University of Bristol , unpublished PhD thesis.