How i can make block-bootsrapping ?

Hello. I'm trying to make a block-bootstrapping of a financial time series. More precisely, Starting from a time series of length X, i would make a block bootstrapping where the length of the block is L. To do this i Found the functions bpestcir and bpestdb developed by Abdelhak M. Zoubir and D. Robert Iskander. Is it possible ,from the starting time series, to make a N block-bootstrapping of length N? thank you, Michael.

[Debanjan Borthakur]

Check this website https://www.spg.tu-darmstadt.de/res/dl/bootstraptoolboxformatlab/bootstrapmatlabtoolbox.en.jsp