Help BMB - Table of contents 2.2.4 Wild cards and Boolean searches

The usage of wildcards (use ? for single-character wildcards and use * for multi-character wildcards) and Boolean operators is allowed (And, Or, Not) in all fields with a free text input.

A minimum of 3 characters is required when using wildcards.

Example :

   (Franciscan order AND econ*) NOT France

In fields that only allow the selection from a pre-defined list (Discipline, Area and Subject Tree) the Boolean/logical operators must be selected at the top of the selection screen:

Boolean operators

Your choice of relation will be valid for all selected keywords.