@article{1365259,
      note = {"Volume 68, number 370 (end of volume)."},
      author = {Yang, Deane,},
      url = {http://library.usi.edu/record/1365259},
      title = {Involutive hyperbolic differential systems /},
      recid = {1365259},
      pages = {1 online resource (109 pages).},
}