@article{PismaZhETF.77.3,
    title = {On a modification of the boundary state formalism in off-shell string theory},
    author = {Akhmedov, E. T. and Laidlaw, M. and Semenoff, G. W.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {77},
    issue = {1},
    pages = {3},
    year = {2003},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_155.shtml},
}