1. Boersma P. & Weenink D. Praat: doing phonetics by computer Version 5.1.43. http://www.praat.org/. Boersma P. & Weenink D. Praat: doing phonetics by computer Version 5.1.43. http://www.praat.org/.
2. Merging the simple view of reading with reading theory;Chafe W;Journal of Reading Behavior,1988