TY - JOUR A1 - Herbst, E.A1 - Millar, T. J.A1 - Wlodek, S.A1 - Bohme, D. K.T1 - The chemistry of silicon in dense interstellar cloudsJF - Astronomy & AstrophysicsY1 - 1989VL - 222SP - 205EP - 210ER -