G. Pettifer

The role of engineering geology in the route selection, design and construction of a road across the Blue Nile gorge, Ethiopia

G. Hearn, G. Pettifer, 2016, Bulletin of Engineering Geology and the Environment.

A revision of the graphical method for assessing the excavatability of rock

P. G. Fookes, G. S. Pettifer, P. Fookes, 1994, Quarterly Journal of Engineering Geology.

The clay mineral content of various rock types compared with the methylene blue value

J. Hills, G. Pettifer, 2007 .

Destructuring and disaggregation of Mercia Mudstone during full-face tunnelling

J. H. Atkinson, P. G. Fookes, B. F. Miglio, 2003, Quarterly Journal of Engineering Geology and Hydrogeology.