@article{oai:tsukuba.repo.nii.ac.jp:00039004,
 author = {礒田, 正美 and Robutti, Ornella and Cusi, Annalisa and Clark-Wilson, Alison and Jaworski, Barbara and Chapman, Olive and Esteley, Cristina and Goos, Merrilyn and Isoda, Masami and Joubert, Marie},
 issue = {5},
 journal = {ZDM : the international journal on mathematics education},
 month = {Aug},
 pages = {651--690},
 title = {ICME international survey on teachers working and learning through collaboration: June 2016},
 volume = {48},
 year = {2016}
}