1. Combinatorial Analysis Situs;Alexander;Trans. Amer. Math. Soc.,1926
2. On the chains of a complex and their duals; On the ring of a compact metric space;Alexander;Proc. Nat. Acad. Sci. USA,1935
3. On the connectivity ring of an abstract space;Alexander;Ann. of Math.,1936
4. General combinatorial topology;Alexandroff;Trans. Amer. Math. Soc.,1941
5. Topologie;Alexandroff,1935