@article{CM_1969__21_2_185_0,
     author = {Roggenkamp, K. W.},
     title = {Projective modules over clean orders},
     journal = {Compositio Mathematica},
     pages = {185--194},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {21},
     number = {2},
     year = {1969},
     mrnumber = {248170},
     zbl = {0175.31801},
     language = {en},
     url = {http://www.numdam.org/item/CM_1969__21_2_185_0/}
}