Authors: Alcolea, J Pardo, JR Bujarrabal, V Bachiller, R Barcia, A Colomer, F Gallego, JD Gomez-Gonzalez, J del Pino, A Planesas, P del Rio, S Rodriguez-Franco, A del Romero, A Tafalla, M de Vicente, P

Citation: J. Alcolea et al., Six years of short-spaced monitoring of the v=1 and v=2, J=1-0 (SiO)-Si-28maser emission in evolved stars, ASTR AST SS, 139(3), 1999, pp. 461-482