Search for "β- and γ-amino acids" in Full Text gives 3 result(s) in Beilstein Journal of Organic Chemistry.
Beilstein J. Org. Chem. 2022, 18, 381–419, doi:10.3762/bjoc.18.43
Beilstein J. Org. Chem. 2017, 13, 2710–2738, doi:10.3762/bjoc.13.269
Beilstein J. Org. Chem. 2012, 8, 640–649, doi:10.3762/bjoc.8.71