@article{CM_1990__74_2_165_0,
     author = {Grover, V. K. and Sankaran, N.},
     title = {Projective modules and approximation couples},
     journal = {Compositio Mathematica},
     pages = {165--168},
     publisher = {Kluwer Academic Publishers},
     volume = {74},
     number = {2},
     year = {1990},
     mrnumber = {1047738},
     zbl = {0717.13006},
     language = {en},
     url = {http://www.numdam.org/item/CM_1990__74_2_165_0/}
}