BibTex format
@article{Sarma:1980,
author = {Sarma, SK and Jennings, DN},
journal = {Soils under cyclic and transient loading, volume 1. Proc. International symposium, Swansea 7-11 Jan. 1980},
pages = {295--298},
title = {A dynamic pore pressure parameter A<inf>n</inf>.},
year = {1980}
}