Theoretical study on the spin and orbital orderings in Ruddlesden-Popper compound La3-3xCa1+3xMn3O10(0 ≤ x ≤ 1)X. Lan and W. Y. ZhangEur. Phys. J. B, 66 3 (2008) 321-327DOI: https://doi.org/10.1140/epjb/e2008-00434-0