1. New material for permanent magnets on a base of Nd and Fe;Sagawa;J. Appl. Phys.,1984
2. Permanent magnet materials based on the rare earth-iron-boron tetragonal compounds;Sagawa;IEEE Trans. Magn. MAG-20,1984
3. Pr‐Fe and Nd‐Fe‐based materials: A new class of high‐performance permanent magnets;Croat;J. Appl. Phys.,1984
4. Rare-Earth Permanent Magnets, in: I.R. Harris (Ed.), Rare-Earth Permanent Magnets, 8, first ed., North Holland, 1989, p. 142. eBook ISBN: 9780080983639 Imprint.
5. Review of permanent magnet applications and the potential for high energy magnets;Howe,1991