@article{VovkVovkDobrovolskiy2013,
  author    = {Ruslan V. Vovk and Nikolaj R. Vovk and Oleksandr V. Dobrovolskiy},
  title     = {Aging effect on electrical conductivity of pure and al-doped YBa2Cu3O7-δ single crystals with a given topology of planar defects},
  journal   = {Advances in condensed matter physics},
  volume    = {2013},
  number    = {Art. 931726},
  pages     = {1 -- 7},
  doi       = {10.1155/2013/931726},
  year      = {2013},
}