Note 106 — DEVELOPMENT OF GRAVITY PENDULUMS IN THE 19th CENTURY (continued 2)
Reading edition
Hugh L. Dryden, “A Reexamination of the Potsdam Absolute Determination of Gravity,” Journal of Research, National Bureau of Standards (1942), vol. 29, p. 303; and A. Berroth, “Das Fundamentalsystem der Schwere im Lichte neuer Reversionspendelmessungen,” Bulletin Géodésique (1949), no. 12, pp. 183-204.