Existence of solutions for a resonant problem under Landesman-Lazer conditions. Ngô, Quốc Anh; Toan, Hoang Quoc — 2008 Electronic Journal of Differential Equations (EJDE) [electronic only]
Notes on an open problem of F. Qi and Y. Chen and J. Kimball. Ngo, Quoc Anh; Tung, Pham Huy — 2007 JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
A new generalization of Ostrowski type inequality on time scales. Liu, Wenjun J.; Ngô, Qúôc-Anh; Chen, Wenbing B. — 2009 Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică
Notes on an integral inequality. Quoc Anh Ngo; Du Duc Thang; Tran Tat Dat; Dang Anh Tuan — 2006 JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]