Cong Nguyen Dinh; Siegmund Stefan; Doan Thai Son; Tuan Hoang The: Linearized asymptotic stability for fractional differential equations. (2016)
Siegmund Stefan; Nowak Christine; Diblík Josef: A generalized Picard–Lindelöf theorem. (2016)
Diblík Josef; Nowak Christine; Siegmund Stefan: A general Lipschitz uniqueness criterion for scalar ordinary differential equations. (2014)