Search for "Gewald reaction" in Full Text gives 3 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2015, 11, 875–883, doi:10.3762/bjoc.11.98
Beilstein J. Org. Chem. 2011, 7, 442–495, doi:10.3762/bjoc.7.57
Beilstein J. Org. Chem. 2008, 4, No. 49, doi:10.3762/bjoc.4.49