@article{MM2_1993__79_1_155851,
     author = {M.A. Mor\'on and F.R. Ruiz del Portal},
     title = {Counting shape and homotopy types among fundamental absolute neighborhood retracts: an elementary approach.},
     journal = {Manuscripta mathematica},
     pages = {411--414},
     publisher = {mathdoc},
     volume = {79},
     number = {1},
     year = {1993},
     zbl = {0839.54021},
     url = {http://geodesic.mathdoc.fr/item/MM2_1993__79_1_155851/}
}