@article{861009,
      author = {Frank-Kamenetskaya, O. V. and Vlasov, Dmitry Yu, and  Rytikova, Vera V.,},
      url = {http://library.usi.edu/record/861009},
      title = {The Effect of the Environment on Saint Petersburg's  Cultural Heritage : Results of Monitoring the Historical  Necropolis Monuments /},
      recid = {861009},
      pages = {1 online resource.},
}