@article{10_4064_sm_26_1_1_10,
     author = {W. S{\l}owikowski},
     title = {On the theory of inductive families},
     journal = {Studia Mathematica},
     pages = {1--10},
     year = {1965},
     volume = {26},
     number = {1},
     doi = {10.4064/sm-26-1-1-10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-26-1-1-10/}
}