Spanish:

If a Spanish-language author abbreviates the first of the two surnames (the normal entry element), consider that this is an indication of the person’s preference.

Example

Hungarian:

If a Hungarian name consists of two surnames and the first surname is represented by an initial or an abbreviation, enter the name under the second surname. Make a reference from the first surname.

Example

Note: Change existing headings established before November 2000 not in accord with this policy when the headings are needed in current cataloging.

See also:

22.5C. Compound surnames