@article{AIF_1983__33_2_167_0,
     author = {Hulin, Dominique},
     title = {Le second nombre de {Betti} d{\textquoteright}une vari\'et\'e riemannienne $({1\over 4} -\varepsilon )$-pinc\'ee de dimension 4},
     journal = {Annales de l'Institut Fourier},
     pages = {167--182},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {33},
     number = {2},
     year = {1983},
     doi = {10.5802/aif.922},
     mrnumber = {85f:53045},
     zbl = {0486.53033},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.5802/aif.922/}
}