@incollection {MR3927715,
    AUTHOR = {M\"{u}llner, Clemens and Ryzhikov, Andrew},
     TITLE = {Palindromic subsequences in finite words},
 BOOKTITLE = {Language and automata theory and applications},
    SERIES = {Lecture Notes in Comput. Sci.},
    VOLUME = {11417},
     PAGES = {460--468},
 PUBLISHER = {Springer, Cham},
      YEAR = {2019},
   MRCLASS = {68R15},
  MRNUMBER = {3927715},
}