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2009
Sheng, Quan Z ; Yu, Jian ; del Álamo, José María. https://repository.uel.ac.uk/download/80bbc7ba963fa1b06a212e529b5c7f22b5a3197561a33af5001aff4f13e015d1/469963/Sheng,%20Q.Z.%20%282009%29%20Weaving%20Services%2099-121.pdf.
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2009
Yelmo, Juan Carlos ; del Álamo, José María ; Trapero, Rubén... https://repository.uel.ac.uk/download/808d00441773117e559d6450816412404314b3f47c2261385bafcd89ad074962/1174917/Yelmo,%20J.C.%20%282008%29%20ITU-T%20211-18.pdf.
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2008