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Arshad Sadia; Buşe Constantin; Nosheen Ammara; Zada Akbar: Connections between the stability of a Poincare map and boundedness of certain associate sequences. (2011)
Lupulescu Vasile; Zada Akbar: Linear impulsive dynamic systems on time scales. (2010)
Buşe Constantin; Zada Akbar: Boundedness and exponential stability for periodic time dependent systems. (2009)