"contributions to the discussion" is a correct and usable phrase in written English.
You can use it to describe the input of individuals to an organized discussion. For example: "John's contributions to the discussion were particularly noteworthy."
T.E.S. and C.E.M. made substantial contributions to the discussion of content.
This Comment offers two contributions to the discussion of noncitizen suffrage.
Hockey said the president of the World Bank, Jim Yong-kimadeade "significant" contributions to the discussion about Ebola.
All the authors made substantial contributions to the discussion of content, and reviewed and edited the manuscript before submission.
It is generally acknowledged by historians of philosophy that medieval philosophers made key contributions to the discussion of the problem of being and the fundamental issues of metaphysics.
10: Three readers will be selected by the Guardian to form a panel of judges from those readers who have made substantial contributions to the discussion of the shortlisted books.
The authors would like to thank workshop participants and interviewees for their contributions to the discussions and Mott MacDonald for providing the venues to host the workshops.
Lack of space precludes more than a mention of the other books, all of which make useful contributions to the discussions of our potentially dis astrous situation.
Students were assessed separately for each competency as well as for their contributions to the discussions.
During discussions the moderator ensured that contributions to the discussions were distributed more or less evenly among participants, i.e. where necessary the moderator might have asked some of the participants directly for his/her opinion.
All authors made a substantial contribution to the discussion of content.
