I have 3 references in my report, below is my bibtex file. The problem is when I do \cite{article1}
in my first citation, it showed [2]. And the second \cite{article2}
showed [3] and the last showed [1].
@article{
article1,
Author = {Jie, Ding and Ning, Li.},
Title = {A Distributed Adaptation Management Framework in Content Delivery Networks},
Journal = {Wireless Communications, Networking and Mobile Computing (WiCOM)},
Pages = {23-25},
Year = {2011} }
@article{
article2,
Author = {Molina, B. and Ruiz, V. and Alonso, I. and Palau, C.E. and Guerri, J.C. and Esteve, M.},
Title = {A closer look at a content delivery network implementation},
Journal = {Electrotechnical Conference},
Pages = {685-688},
Year = {2004} }
@article{
article3,
Author = {Chen, Y. and Katz, R.H. and Kubiatowicz, J.D.},
Title = {Dynamic Replica Placement for Scalable Content Delivery},
Journal = {Intel workshop on Peer-to-Peer Systems},
Pages = {306-318},
Year = {2002} }