Espinosa, M., Vicente L Diaz Melian, A. Serrano-Muñoz, and E. Altshuler. “Intruders Cooperatively Interact with a Wall into Granular Matter.”https://doi.org/10.1007/s10035-021-01200-8__Granular Matter. Springer Nature, 2022.https://doi.org/10.1007/s10035-021-01200-8 .