@article{700645,
     title = {Planable and smooth dendroids},
     booktitle = {General topology and its relations to modern analysis and algebra IV},
     series = {GDML\_Books},
     publisher = {Society of Czechoslovak Mathematicians and Physicist},
     address = {Praha},
     year = {1977},
     pages = {[260]-267},
     mrnumber = {MR0464189},
     zbl = {0401.54032},
     url = {http://dml.mathdoc.fr/item/700645}
}

Mackowiak, T. Planable and smooth dendroids, dans General topology and its relations to modern analysis and algebra IV, GDML_Books,  (1977), pp. [260]-267. http://gdmltest.u-ga.fr/item/700645/