The Role of the Side Group in Reactions Involving 1-Propyl-2-methylimidazole and 1-Propyl-2-imidazole-carboxaldehyde and Co(II), Ni(II), Cu(II) and Zn(II) Ions - Barszcz, B.; Kulig, J.; Jezierska, J.; Lisowski, J. (1999)