@inbook{f56366c06fce11db81a9000ea68e967b,
title = "Quaternion symmetry of the Dirac equation",
author = "T. Saue and Jensen, \{Hans J{\o}rgen Aagaard\}",
year = "2000",
doi = "10.1007/978-3-642-57237-1\_11",
language = "English",
volume = "3",
series = "Lecture Notes in Chemistry",
publisher = "Springer Science+Business Media",
pages = "227--246",
editor = "M. Defranceshi and \{Le Bris\}, C.",
booktitle = "Mathematical Models and Methods for Ab Initio Quantum Chemistry",
address = "United States",
}