Gao1, Q. et al. 2014. Immobilization of Xylanase Xyn II-ST4 and -ST5 with Biotinylated Poly(lactic-co-glycolic Acid) Nanosphere Carrier Increased Their Thermal and pH Stabilities. Asian Journal of Chemistry. 26, 23 (Nov. 2014), 7921–7925. DOI:https://doi.org/10.14233/ajchem.2014.16749.