Handbook on the Physics and Chemistry of Rare Earths 
Subtitle: Volume 14 (Handbook on the Physics and Chemistry of Rare Earths)
Publisher: North Holland
Published: July 1, 1991
Language: eng
Number of pages: 484
ISBN-13: 9780444887436
First sentence: One of the most striking properties of lanthanide metals and compounds is the relative insensitivity of electrons in the unfilled 4f shell to the local environment, compared to non-f electron shells with similar atomic binding energies.