Molenaar-Langeveld, Tineke A.; Ingemann, Steen; Nibbering, Nico M. M.
Organic Mass Spectrometry, 1993 , vol. 28, # 10 p. 1167 - 1178

Lind; Shen; Eriksen; Merenyi
Journal of the American Chemical Society, 1990 , vol. 112, # 2 p. 479 - 482