Manuscript Preparation, Copyediting, and Proofreading
Q. What do ellipses within brackets mean? Often I find this [ . . . ] within a quote. Does this mean that there is an ellipsis in the quoted passage in the original?
A. Actually, no—it means that material has been omitted from the original by the author who is quoting it. The use of brackets to distinguish ellipses from suspension points is especially common in European publications.