Most records contain multiple descriptors in both English and French.
Additional descriptors in Spanish may be present in some records in the area of biology since 1985 and all areas since 1987, and in German for the area of metallurgy since 1980. Descriptors may include hyphens, commas, or other punctuation. When there is a difference in the number of descriptors assigned in each language, French descriptors are the most numerous. Only German-language descriptors for the area of metallurgy appear in the Other Language Descriptor field. Experimentelle Untersuchung top Alloys and composites.