@article{RM_1980_35_3_a40,
     author = {V. S. Retakh},
     title = {Massey operations, obstructions to {Sullivan} formality, and obstructions to {Kodaira--Spencer} deformations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {279--283},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1980_35_3_a40/}
}