(Pre-analysis) (ebook/docx) Remove reference in book.

In many book is possible to find link to reference, but the reading of those numbers or phrase is not natural in a lecture section.

In all scripts exist a method used to extract chapter text, the analysis required here need to take this text as input and remove possible reference. Most of times a reference Is defined with following syntax [1] where 1 is the reference. Reference examples:

• [1]
• (Author, 1999)
• phrase.1

Desiderable: add an optional flag to remove the references from text.