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The paper has been withdrawn.
This paper has been withdrawn by the authors.
This paper has been withdrawn by the authors due to a crucial error in equation 12.
This paper has been withdrawn by the author. Improved versions (arXiv:1109.5548 and arXiv:0708.4190) are accepted.
This paper has been withdrawn by the author.
This paper has been withdrawn by the authors, because of serious experimental problems.
This paper has been withdrawn by the author because the conclusions reached in it are incorrect.
This paper has been withdrawn by the author due to time-consuming revision.
This paper has been withdrawn by the authors. Our basic argument on the gauge invariance presented in this paper cannot withstand the criticism which has been drawn to our attention by several colleagues.
The paper is withdrawn.
The paper has been withdrawn for further elaboration.
This paper has been withdrawn by the author due to similarity to Author's other paper
There have been comments on the starting paper, hep-th/0106074, which point out unclear motivation and definitions on noncommutative momentum introduced. Therefore, to give more clear presentation, this paper is withdrawn.
This paper has been withdrawn by the author.
This paper has been withdrawn by the author since the comments have been withdrawn.
This paper has been withdrawn.
This paper has been withdrawn by the author(s), due to double submission. You can find it under: physics/0208019
This paper has been withdrawn.
The paper has been withdrawn by the author.
This paper has been withdrawn by the authors, due to inappropriate discussions in Discussions.