SPEAR — ToF neutron reflectometer at the Los Alamos Neutron Science CenterM. Dubey, M. S. Jablin, P. Wang, M. Mocko and J. MajewskiEur. Phys. J. Plus, 126 11 (2011) 110DOI: https://doi.org/10.1140/epjp/i2011-11110-1