First Edition. paperback. Illustrated with 11 figures and other mathematical formulae. 64 pages, staple-bound in 3 sections (1-44; 45-56; 8pp addendum). Large thin 8vo pamphlet, original green printed wrappers (wraps are mostly faded to brown and lightly edgeworn; covers detached but present with only slight loss of paper around staples). Graz: In Selbstverlag des Verfassers, 1952. First edition. very good.
A very good copy of this uncommon scientific work.