@article{10_1017_S0008439500024656,
     author = {Pickert, G.},
     title = {The {Training} of {Secondary} {School} {Teachers} of {Mathematics} in the {Federal} {Republic} of {Germany}},
     journal = {Canadian mathematical bulletin},
     pages = {233--238},
     year = {1965},
     volume = {8},
     number = {2},
     doi = {10.1017/S0008439500024656},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0008439500024656/}
}