[EN] NITROGENEOUS POLYCYCLIC DERIVATIVES USEFUL AS CHELATORS OF METAL IONS AND THEIR APPLICATIONS [FR] DERIVES POLYCYCLIQUES AZOTES UTILISES COMME CHELATEURS D'IONS METALLIQUES ET LEURS APPLICATIONS
[EN] NITROGENEOUS POLYCYCLIC DERIVATIVES USEFUL AS CHELATORS OF METAL IONS AND THEIR APPLICATIONS<br/>[FR] DERIVES POLYCYCLIQUES AZOTES UTILISES COMME CHELATEURS D'IONS METALLIQUES ET LEURS APPLICATIONS