@article{ASENS_1981_4_14_3_323_0,
     author = {Carlson, J. and Clemens, H. and Morgan, J.},
     title = {On the mixed {Hodge} structure associated to $\pi _3$ of a simply connected complex projective manifold},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {323--338},
     publisher = {Elsevier},
     volume = {Ser. 4, 14},
     number = {3},
     year = {1981},
     doi = {10.24033/asens.1408},
     mrnumber = {83g:14002},
     zbl = {0511.14005},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1408/}
}