One copy of the published proceedings of the Second Canadian Conference on Foundations and Applications of General Science Theory. The conference was held at Ryerson Polytechnical Institute May 24-25, 1990 in the Oakham House Lounge. Helmut Burkhardt was the editor of the publication, which was printed at Ryerson, and also contributed papers to the publication.
The list of papers authored Burkhardt in this publication include:

Introduction to the conference theme: Adaptation of knowledge to societal needs, pg. 11

Substance Accounting: a fundamental knowledge structure for all disciplines, pg. 73

One copy of the published proceedings of meeting of the International Society for General Systems Research - Canadian Division and North East United States Region held in Toronto at Ryerson Polytechnical Institute on May 20-2, 1987 with post-conference workshops held May 22. This was the first Canadian Conference. Helmut Burkhardt was the editor of the publication, which was printed at Ryerson, and also contributed papers to the publication.
The list of papers authored Burkhardt in this publication include:

General System Science: an introduction addressing the five w's

Definition and classification of systems and of sciences

Integrating physics and general system theory