1. Snake-like continua;Bing, R. H.;Duke Math. J.,1951
2. Embeddings of inverse limits;Isbell, J. R.;Ann. of Math. (2),1959
3. 𝜖-mappings onto polyhedra;Mardešić, Sibe;Trans. Amer. Math. Soc.,1963
4. Michael McCord, Inverse limit systems, Thesis, Yale University, New Haven, Conn., 1963.