Korshin, E.E.; Eliseenkova, R.M.; Zyablikova, T.A.; Zakharova, L.G.; Akhmadullin, A.G.; et al.
Russian Chemical Bulletin, 1993 , vol. 42, # 6 p. 1071 - 1077

Koedjikov, Asen H.; Blagoeva, Iva B.; Pojarlieff, Ivan G.; Kirby, Anthony J.
Journal of the Chemical Society. Perkin Transactions 2, 1996 , vol. 0, # 11 art. no. 6/018311, p. 2479 - 2487

Gansser
Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1909 , vol. 61, p. 46

Hosten, N.; Anteunis, M. J. O.
Bulletin des Societes Chimiques Belges, 1988 , vol. 97, # 1 p. 45 - 47