TY  - JOUR
AU  - Heilbronn, H.
AU  - Scherk, P.
TI  - Sums of Complexes in Torsion Free Abelian Groups
JO  - Canadian mathematical bulletin
PY  - 1969
SP  - 479
EP  - 480
VL  - 12
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-061-1/
DO  - 10.4153/CMB-1969-061-1
ID  - 10_4153_CMB_1969_061_1
ER  -