@book{BronnikovKasperRainer1997,
  author    = {Bronnikov, K. A. and Kasper, Uwe and Rainer, Martin},
  title     = {Intersecting electric and magnetic p-branes: spherically symmetric solutions},
  series = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Mathematik},
  volume    = {1997, 21},
  journal   = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Mathematik},
  publisher = {Univ.},
  address   = {Potsdam},
  pages     = {[9] Bl.},
  year      = {1997},
  language  = {en}
}
@article{BronnikovKasperRainer1999,
  author    = {Bronnikov, K. A. and Kasper, Uwe and Rainer, Martin},
  title     = {Intersecting electric and magnetic p-brains : spherically symmetric solutions},
  year      = {1999},
  language  = {en}
}