Letter to Priests: http://www.clerus.org/clerus/dati/2013-05/16-13/Sacratissimo_Cuore_di_Gesu_EN.html
Letter to Seminarians: http://www.clerus.org/clerus/dati/2013-05/17-13/Lettera_Seminaristi_Sacro_Cuore_EN.html