@article{octavio1985nonexistence,
  abstract = {We prove that there is no free object over a countable set in the category of complete distributive lattices with homomorphisms preserving binary meets and arbitrary joins.},
  author = {Garcia, Octavio and Nelson, Evelyn},
  interhash = {c4a8aeddff294dbdd727c05059ab2050},
  intrahash = {d4ce23539ea3bc784068e93dc70387aa},
  journal = {Order},
  month = {December},
  number = 4,
  pages = {399--403},
  title = {On the nonexistence of free complete distributive lattices},
  url = {http://dx.doi.org/10.1007/BF00582745},
  volume = 1,
  year = 1985
}

@article{hales1964nonexistence,
  author = {Hales, A. W.},
  interhash = {2e2b85532b56b6caaac29b23e33f972f},
  intrahash = {4d17473cee1aa8c33d821aacf2fbb95c},
  journal = {Fundamentae Mathematica},
  pages = {45-66},
  title = {On the non-existence of free complete Boolean algebras},
  url = {http://matwbn.icm.edu.pl/tresc.php?wyd=1&tom=54},
  volume = 54,
  year = 1964
}