TY  - JOUR <br/>
             A1  - Tielens, A.G.G.M.<br/>A1  - Hagen, W.<br/>T1  - Model calculations of the molecular composition of interstellar grain mantles<br/>JF  -  Astronomy and Astrophysics<br/>Y1  - 1982<br/>VL  - 114<br/>SP  - 245<br/>EP  - 260<br/>ER  -