Rational connectivity and sections of families over curves
Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 38 (2005) no. 5, pp. 671-692. 
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     author = {Graber, Tom and Harris, Joe and Mazur, Barry and Starr, Jason},
     title = {Rational connectivity and sections of families over curves},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {671--692},
     publisher = {Elsevier},
     volume = {Ser. 4, 38},
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     doi = {10.1016/j.ansens.2005.07.003},
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     zbl = {1092.14062},
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     url = {http://www.numdam.org/articles/10.1016/j.ansens.2005.07.003/}
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Graber, Tom; Harris, Joe; Mazur, Barry; Starr, Jason. Rational connectivity and sections of families over curves. Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 38 (2005) no. 5, pp. 671-692. doi : 10.1016/j.ansens.2005.07.003. http://www.numdam.org/articles/10.1016/j.ansens.2005.07.003/

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