Hayat T, Khan M, Ayub M, Siddiqui A. The unsteady Couette flow of a second grade fluid in a layer of porous medium. Arch. Mech. [Internet]. 2005 Sep. 1 [cited 2026 Jan. 17];57(5):405-16. Available from: http://am.ippt.gov.pl/index.php/am/article/view/v57p405