1. 1927 ‘Verhandelingen,’ Kon. Mag. Met. Obs. Batavia, No. 20.
2. 1956 Sci. Proc., Internat. Assoc. Met., I.U.G.G., Rome 1954, p. 336. Butterworth, London.
3. 1957 ‘Mededelingen en Verhandelingen,’ Kon. Ned. Met. Inst., No. 69.
4. 1955 Atlas of heat balance, Leningrad.