1. Use of an interpretation station for the study of shallow gas sands on Haltenbanken;Gallagher,1989
2. Shallow gas studies at Haltenbanken; a summary of work performed by the Shallow Gas Project;Gallagher;Intern. Rep., Statoil,1990
3. Detection of near surface gas seepage by the use of conventional 3D seismic data;Heggland,1994
4. Shallow gas evaluations based on conventional 3D seismic data;Gallagher,1994
5. Seabed Pockmarks and Seepages, Impact on Geology, Biology and the Marine Environment;Hovland,1988