Alqasem, B. and Yahya, N. and Qureshi, S. and Irfan, M. and Ur Rehman, Z. and Soleimani, H.  (2017) The enhancement of the magnetic properties of α-Fe2O3 nanocatalyst using an external magnetic field for the production of green ammonia.  Materials Science and Engineering: B, 217.  pp. 49-62.  ISSN 09215107