How Many Holes Can an Unbordered Partial Word Contain?. - Francine Blanchet-Sadri; Emily Allen; Cameron Byrum; Robert Mercas (LATA, 2009)

Counting Bordered Partial Words by Critical Positions. - Emily Allen; Francine Blanchet-Sadri; Cameron Byrum; Mihai Cucuringu; Robert Mercas (Electron. J. Comb., 2011)