@article{1370856,
      author = {Kuchment, Peter, and Semenov, E. M.},
      url = {http://library.usi.edu/record/1370856},
      title = {Differential equations, mathematical physics, and  applications : Selim Grigorievich Krein centennial /},
      recid = {1370856},
      pages = {1 online resource (322 pages).},
}