@article{oai:tsukuba.repo.nii.ac.jp:00015681,
 author = {Marcuson, Richard},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {65--69},
 title = {A note on the Tits systems of Kac-Moody Steinberg groups},
 volume = {20},
 year = {1996}
}