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- [41] Measurement at 11 micron wavelengths of the diameters of alpha Orionis and alpha Scorpii, and changes in effective temperature of alpha Orionis and very recent dust emission ASTROPHYSICAL JOURNAL, 1996, 463 (01): : 336 - 343
- [44] Methods and apparatus used in the cryogenic laboratory III Baths of very uniform and constant temperature in the cryostat (continued) A cryostat of modified form for apparatus of small dimensions IV A permanent bath of liquid nitrogen at ordinary and at reduced pressure V Arrangement of Burckhardt Weiss iacuum pump for use in the circulations for low temperatures PROCEEDINGS OF THE KONINKLIJKE AKADEMIE VAN WETENSCHAPPEN TE AMSTERDAM, 1903, 5 : A628 - A636