References
- Barber , M. , Bordoli , R. S. and Sedgwick , R. 1981 . Soft lonisation Biological Mass Spectrometry , Edited by: Morris , H. R. 137 – 152 . London : Heyden .
- Morris , H. R. , Panico , M. and Taylor , G. W. 1983 . Biochem. and Biophys. Research Communication , 117 : 299