Limestone quarrying and sinkhole development in the English Peak District = Les carrières de calcaire et le développement des affaissements du sol dans le district English PeakGUNN, J; GAGEN, P.Multidisciplinary conference on sinkholes and the environmental impacts of karst. 2. 1987, pp 121-125Conference Paper

Landform replication as a technique for the construction of daleside landform sequencesBAILEY, D; GAGEN, P; GUNN, J et al.International conference Minerals, metals and the environment. 1992, pp 451-462Conference Paper

Feasibility of cogranulating the nitrogen loss inhibitors dicyandiamide, thiourea, phenyl phosphorodiamidate, and potassium ethyl xanthate with ureaGAUTNEY, J; KIM, Y. K; GAGEN, P. M et al.Industrial & engineering chemistry product research and development. 1984, Vol 23, Num 3, pp 483-489, issn 0196-4321Article

Compatibility of the nitrification inhibitors dicyandiamide and thiourea with anhydrous and aqueous ammoniaGAUTNEY, J; KIM, Y. K; GAGEN, P. M et al.Industrial & engineering chemistry product research and development. 1985, Vol 24, Num 4, pp 645-650, issn 0196-4321Article

Hybrid fiber-coax access networksGAGEN, P. F; PUGH, W. E.Bell Labs technical journal. 1996, Vol 1, Num 1, pp 28-35, issn 1089-7089Article