BARTUŠEK, Miroslav a John R. GRAEF. Strong nonlinear limit-point/limit-circle properties for forced Thomas-Fermi equations with p-Laplacian. PanAmer.Math.J. 2008, roč. 18, č. 1, s. 73-88. ISSN 1064-9735.
BARTUŠEK, Miroslav a John R. GRAEF. On the limit-point/limit-circle problem for second order nonlinear equations. Nonlinear Studies. 2006, roč. 9, č. 1, s. 361-369. ISSN 1359-8678.
BARTUŠEK, Miroslav a John R. GRAEF. The Nonlinear Limit-Point/Limit-Circle Problem for Second Order Equations with P-Laplacian. Dynamic Systems and Applications. Atlanta, USA: Dynamic Publishers,Inc., 2006, roč. 14, č. 1, s. 431-446, 15 s. ISSN 1056-2176.
BARTUŠEK, Miroslav a John GRAEF. Some limit-point/limit-circle results for third order differential equations. In Discrete and Continuous Dynamical Systems.Proc.of the Third International Conference on Dynamical Systems and Differential Equations. USA: Kennesaw State University,Georgia,USA, 2002, s. 31-38.
BARTUŠEK, Miroslav, Zuzana DOŠLÁ a John R. GRAEF. The nonlinear limit-point/limit-circle problem for higher order equations. Archivum Mathematicum. Brno: MU Brno, 1999, roč. 34, č. 1, s. 13-22. ISSN 0044-8753.