1. Algorithm 664: A portable package for Bessel functions of a complex argument and nonnegative order;Amos;ACM Trans. Math. Software,1986
2. Generalized well-function evaluation for homogeneous and fissured aquifers;Barker;J. Hydrol.,1985
3. Block-geometry functions characterizing transport in densely fissured media;Barker;J. Hydrol.,1985
4. Modelling the effects of matrix diffusion on transport in densely fissured media;Barker;Mem. Int. Assoc. Hydrogeol.,1985
5. Black , J. H. J. A. Barker D. J. Noy Crosshole investigations: the method, theory and analysis of crosshole sinusoidal pressure tests in fissured rock, Stripa Proj Stockholm 1986