Arabidopsis homeodomain-leucine zipper IV proteins promote stomatal development and ectopically induce stomata beyond the epidermis, Torii Keiko U, Peterson Kylee M, Kanaoka Masahiro M, Horst Robin J, Shyu Christine, Burr Christian A, Omae Minami, and Sato Yutaka, Development (Cambridge, England), 03/2013, Volume 140 (2013)