This questionnaire has been created in 2006 when Antoine Guillaume and Françoise Rose were undertaking a first survey of dedicated sociative causative markers. It was sent to individual language experts and mail lists.
It has been updated in 2020 for publication on TulQuest. Changes are:
-contact information of authors
-addition of more recent references
-changes in languages name and orthography for Emerillon/Teko (the name "Emerillon" has been replaced with Teko, and the "l" have been replaced by "ɾ".).
All the updates are shaded in the document.