@article{800178,
      note = {Includes indexes.},
      author = {Gelca, Rǎzvan, and Andreescu, Titu,},
      url = {http://library.usi.edu/record/800178},
      title = {Putnam and beyond /},
      doi = {https://doi.org/10.1007/978-3-319-58988-6},
      recid = {800178},
      pages = {1 online resource (xviii, 850 pages) :},
}