1. and , in: Fizyka i chemia ciaía staíego, Ossolineum, Warszawa 1977 (p. 54).
2. , and , Proc. 2nd Internat. Conf. Electronic Structure of the Actinides, Wrocław 1976 (p. 315).
3. and , in: The Actinides:Electronic Structure and Related Properties, Vol. 1, Academic Press, New York 1974 (p. 154).
4. private communication.