Tonder, G. van

Akoachere, R.A. & van Tonder, G., 2009. Two new methods for the determination of hydraulic fracture apertures in fractured-rock aquifers. , pp.p. 349-360 : 12 fig., 2 tab. Available at: https://es.ircwash.org/sites/default/files/Akoachere-2009-Two.pdf.