@article{MM2_1989__64_2_155417,
     author = {Dominique Arlettaz},
     title = {Characteristic classes and obstruction theory for infinite loop spaces.},
     journal = {Manuscripta mathematica},
     pages = {431--444},
     publisher = {mathdoc},
     volume = {64},
     number = {2},
     year = {1989},
     zbl = {0681.55014},
     url = {http://geodesic.mathdoc.fr/item/MM2_1989__64_2_155417/}
}