1. Huber-Burnand, P.: Ueber den ausfluß und den druck des sandes. Kunst Gewerbeblatt Polytech. Ver. Königreich Bayern 15, 730–740 (1829)
2. Campbell, C.S.: Granular material flows - an overview. J. Powder Technol. 162, 208 (2006)
3. Carpinlioglu, M.O.: A critical review on modeling and analysis of granular matter flows. Int. J. Chem. Chem. Eng. Syst. 1, 21 (2016)
4. Duran, J.: Sands: Powders, and Grains: An Introduction to the Physics of Granular Materials. Springer-Verlag, New York (2000)
5. Beverloo, W.A., Leniger, H.A., Van de Velde, J.J.: The flow of granular solids through orifices. Chem. Eng. Sci. 15, 260–269 (1961)