Birefringence of hexagonal single crystals of helium-4 at various pressures.
Publisher: Waltman
Published: 1968
Place of publication: Delft
Language: eng
Number of pages: 112
Subjects: Solid helium.; Crystal optics.; Refraction, Double.
Notes: Bibliography: p. 104-105.
Proefschrift--Delft.
"Stellingen": [4] p. inserted.
Summary in English and Dutch.