@article{CMH_1993__68_2_140317,
     author = {K.W. Gruenberg},
     title = {Homotopy classes of truncated resolutions.},
     journal = {Commentarii mathematici Helvetici},
     pages = {579--598},
     publisher = {mathdoc},
     volume = {68},
     number = {2},
     year = {1993},
     zbl = {0806.55006},
     url = {http://geodesic.mathdoc.fr/item/CMH_1993__68_2_140317/}
}