@article{MM2_1992__76_1_155743, author = {Samson Saneblidze}, title = {Filtered model of a fibration and rational obstruction theory.}, journal = {Manuscripta mathematica}, pages = {111--136}, publisher = {mathdoc}, volume = {76}, number = {1}, year = {1992}, zbl = {0766.55008}, url = {http://geodesic.mathdoc.fr/item/MM2_1992__76_1_155743/} }