Cheng, Keguang; Liu, Jun; Sun, Hongbin; Bokor, Eva; Czifrak, Katalin; Konya, Balint; Toth, Marietta; Docsa, Tibor; Gergely, Pal; Somsak, Laszlo New Journal of Chemistry, 2010, vol. 34, # 7 p. 1450 - 1464 doi: 10.1039/b9nj00602h