TY - JOUR AU - V Nagy AU - D Sokolov AU - Marc Desrosiers C2 - Analytica Chimica Acta DA - 1997-01-01 00:01:00 LA - en M1 - 339 PB - Analytica Chimica Acta PY - 1997 TI - Choosing Reference Samples for EPR Concentration Measurements, Part 4, Systems of S=5/2 ER -