Influence of additional compounds on coercivity of sintered Nd-Fe-B magnets Thanh Pham, Duong Nguyen, Yen Nguyen, Lam Nguyen, Quang Dinh, Ngoc Nguyen, Koledov Victor, Kamantsev Alexander, Mashirov Alexey and Dan Nguyen EPJ Web Conf., 185 (2018) 04031 Published online: 04 July 2018 DOI: 10.1051/epjconf/201818504031