Andersson, Stig I.; Högfors, Christian; Pettersson, Bo: Microlocal heat kernel asymptotics and inverse spectral problems.
(English).
In:
Bureš, J.
and Souček, V. (eds.): Proceedings of the Winter School "Geometry and Physics".
Circolo Matematico di Palermo, Palermo, 1989.
pp. [93]-114