Characterisation of major dual-porosity aquifers (North European Chalk, African & Asian weathered crystalline basement and some volcanic formations), including in 1975 what is regarded as the first paper describing the ‘solute matrix-diffusion mechanism’, which produces large time-delays in pollutant transport.

1974	FOSTER S S D & Milton V A. Hydrol Sci Bull 19 : 485-500	The permeability and storage of an unconfined Chalk aquifer	A-1
1974	FOSTER S S D.  J Hydrol 23 : 299-311	Groundwater storage-riverflow relations in a Chalk catchment	A-2
1975	FOSTER SSD J Hydrol 25 : 159 -163	The Chalk groundwater tritium anomaly – a possible explanation	A-3
1977	FOSTER S S D & Robertson A S.  P Inst Civil Engr  63 : 803-817	Evaluation of a semi-confined Chalk aquifer in East Anglia	A-4
1980	FOSTER S S D & Smith-Carington A K. J Hydrol 46 : 343-364	The interpretation of tritium in the Chalk unsaturated zone	A-5
1981	Barker J A & FOSTER   S S D.  Quart J Eng Geol 14 : 17-24	A diffusion exchange model for solute movement in fissured porous rock.	A-6
1984	FOSTER S S D IAHS Publn 144: 3-12	African groundwater development – the challenges for hydrogeological science	A-7
1985	FOSTER S S D, Ellis A T, Losilla M & Rodriguez H.         Ground Water 23 : 795-802	Role of volcanic tuffs in the groundwater regime of the Valle Central, Costa Rica – Central America.
1985	Chilton P J & FOSTER   S S D.       Hydrogeology J 3 : 36-49	Hydrogeological characterisation and water-supply potential of basement aquifers in tropical Africa.	A-8
2000	B L Morris & S S D FOSTER.   Water Sci Tech 41 : 67-77.	Cryptosporidium contamination hazard assessment and risk management for British groundwater sources.	A-9
2012	FOSTER S Hydrogeology J 20 : 659-672.	Hard-rock aquifers in tropical regions : using science to inform development and management policy