An acoustic interferometer for a wide temperature range

[1] Piezoelectric crystal oscillators applied to the precision measurement of the velocity of sound in air and Co-2 at high frequencies. [J]. PROCEEDINGS OF THE AMERICAN ACADEMY OF ARTS AND SCIENCES, 1925, 60 (1/14): : 271 - 302

[2] ZUHLKE, 1935, ANN PHYS, V21, P667

[1] Piezoelectric crystal oscillators applied to the precision measurement of the velocity of sound in air and Co-2 at high frequencies. [J]. PROCEEDINGS OF THE AMERICAN ACADEMY OF ARTS AND SCIENCES, 1925, 60 (1/14): : 271 - 302

[2] ZUHLKE, 1935, ANN PHYS, V21, P667