1. Wasserbewegung durch boden [water movement through soil];Forchheimer;Z Ver Dtsch Ing,1901
2. Uber kapillare leitung des wassers in boden;Kozeny;Wiss Wien Math Naturwiss KI,1927
3. A calculation of the viscous force exerted by a flowing fluid on a dense swarm of particles;Brinkman;Appl Sci Res,1947
4. Fluid flow through packed columns;Ergun;Chem Eng Prog,1952
5. On the laminar and turbulent flows of ground water through homogeneous sand;Engelund;Akademiet for de tekniske Videnskaber,1953