Erratum: A transparent hybrid of nanocrystalline cellulose and amorphous calcium carbonate nanoparticles (Nanoscale (2011) 3 DOI 10.1039/c1nr10681c)) - Gebauer, Denis; Oliynyk, V.; Salajkova, M.; Sort, J.; Zhou, Q.; Bergström, L.; Salazar-Alvarez, G. (R S C Publications, 2011)