@article{10_4153_CMB_1976_049_5,
     author = {Schumacher, D.},
     title = {Absolutely {Free} {Algebras} in a {Topos} {Containing} an {Infinite} {Object}},
     journal = {Canadian mathematical bulletin},
     pages = {323--328},
     year = {1976},
     volume = {19},
     number = {3},
     doi = {10.4153/CMB-1976-049-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1976-049-5/}
}