| Citation: | Cemil Tun. Boundedness and Uniform Boundedness Results for Certain Non-Autonomous Differential Equations of Fourth Order[J]. Applied Mathematics and Mechanics, 2001, 22(11): 1147-1152. | 
	                | [1] | 
					 Liapunov A M. Stability of Motion[M]. London: Academic Press,1966. 
					
					 | 
			
| [2] | 
					 Reissig R, Sansone G, Conti R. Nonlinear Differential Equations of Higher Order[M]. Noordhoff International Publishing,1974. 
					
					 | 
			
| [3] | 
					 Abou-EI-EIa A M A, Sadek A I. On the asymptotic behaviour of solutions of some differential equations of the fourth order[J]. Ann Differential Equations,1992,8(1):1-12. 
					
					 | 
			
| [4] | 
					 Hara T. On the asymptotic behavior of the solutions of some third and fourth order non-autonomous differential equations[J]. Publ RIMS Kyoto Univ,1974,9:649-673. 
					
					 | 
			
| [5] | 
					 JIN Jun. On the uniform boundedness of the solution of the non-linear differential equation of the fourth order[J]. Ann Differential Equations,1988,4(2):159-171. 
					
					 | 
			
| [6] | 
					 Saded A I. On the asymptotic behaviour of solutions of certain fourth order ordinary differential equations[J]. Math Japon,1997,45(3):527-540. 
					
					 | 
			
| [7] | 
					 Tunc,, C. On the asymptotic behaviour of solutions of some differential equations of the fourth order[J]. Studia Univ Babes-Bolyai Math,1994,39(2):87-96. 
					
					 | 
			
| [8] | 
					 Tunc,, C. On the asymptotic behaviour of solutions of certain fourth order non-autonomous differential equations[J]. Studia Univ Babes-Bolyai Math,1996,41(3):95-105. 
					
					 | 
			
| [9] | 
					 Tunc,, C. On the uniform boundedness of solutions of some non-autonomous differential equations of the fourth order[J]. Appl Math Mech(English Ed),1999,20(6):622-628. 
					
					 | 
			
| [10] | 
					 Lasalle J, Lefschetz S. Stability by Liapunov's Direct Method With Applications[M]. New York: Academic Press,1961. 
					
					 | 
			
| [11] | 
					 Yoshizawa T. Stability theory by Liapunov's second method[Z]. The Mathematical Society of Japan,1966. 
					
					 | 
			
| [12] | 
					 Ezeilo J O C. On the boundedness and the stability of solutions of some differential equations of the fourth order[J]. J Math Anal Appl,1962,5:136-146. 
					
					 | 
			
| [13] | 
					 LU Ting-he, SHEN Jia-qi, JIN Jun. Construction and applications of Liapunov's functions for differential equations of fourth order[J]. Journal of Shanghai Teachers University,1982,11(2). 
					
					 | 
			
| [14] | 
					 QIN Yuan-xun, WANG Lian, WANG Mu-qin. Theory and Application of Motion Stability[M]. Beijing: Science Press,1981. 
					
					 | 
			
| [15] | 
					 SHEN Jia-qi, LU Ting-he, JIN Jun. The construction of Liapunov's function of certain fourth order differential equations[J]. Journal of Shanghai Teachers University, 1983,12(2). 
					
					 | 
			
| [16] | 
					 Yoshizawa T. Liapunov's function and boundedness of solutions[J]. Funkcialaj Ekvacioj,1959,(2). 
					
					 |