Zur Quantentheorie des Strahlungsgleichgewichts. Offprint
1923. Einstein, Albert (1879-1955) and Paul Ehrenfest (1880-1933). Zur Quantentheorie des Strahlungsgleichgewichts. Offprint from Zeitschrift für Physik 19 (1923). 301-306pp. Original printed self-wrappers. 230 x 157 mm. Light toning but very good. First Edition, Offprint Issue. In 1916, after publishing his great work on general relativity, Einstein returned to the..... More