Erratum: “The Free-fall Time of Finite Sheets and Filaments” (2012, ApJ, 744, 190) Toalá, Jesús A. ; Vázquez-Semadeni, Enrique ; Gómez, Gilberto C. Abstract Publication: The Astrophysical Journal Pub Date: July 2015 DOI: 10.1088/0004-637X/808/1/105 Bibcode: 2015ApJ...808..105T