Feng, Y., Wang, M., & Qu, T. (2020). On the implicit immersed boundary method in coupled discrete element and lattice Boltzmann method. International Journal for Numerical and Analytical Methods in Geomechanics, 44(4), pp. 516-532. doi:10.1002/nag.3035

Feng, Yuntian, Min Wang, and Tongming Qu. "On the Implicit Immersed Boundary Method in Coupled Discrete Element and Lattice Boltzmann Method." International Journal for Numerical and Analytical Methods in Geomechanics 44, no. 4 (2020): 516-532.

Feng, Yuntian, Min Wang, and Tongming Qu. "On the Implicit Immersed Boundary Method in Coupled Discrete Element and Lattice Boltzmann Method." International Journal for Numerical and Analytical Methods in Geomechanics 44.4 (2020): 516-532.