TY  - JOUR <br/>
             A1  - Leen, T.M.<br/>A1  - Graff, M.M.<br/>T1  - Oxygen chemistry of shocked interstellar clouds. III - Sulfur and oxygen species in dense clouds<br/>JF  -  Astrophysical Journal<br/>Y1  - 1988<br/>VL  - 325<br/>SP  - 411<br/>EP  - 416<br/>ER  -