@article{WBLN_2016__3__A4_0,
     author = {Sakasai, Takuya},
     title = {Johnson-Morita theory in mapping class groups and monoids of homology cobordisms of surfaces},
     booktitle = {Winter Braids VI (Lille, 2016)},
     series = {Winter Braids Lecture Notes},
     note = {talk:4},
     pages = {1--25},
     publisher = {Winter Braids School},
     year = {2016},
     doi = {10.5802/wbln.15},
     mrnumber = {3707745},
     zbl = {1422.57051},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/wbln.15/}
}