Uncanny X-Men (1963) #298-300, 303-304, 315

X-Men: La Era de Apocalipsis libro 02: Principios... (La Era de Apocalipsis #2)

Mark Waid, Scott Lobdell with Ian Churchill (Illustrator), Tom Lyle (Illustrator), Joe Madureira (Illustrator), Val Semeiks (Illustrator), Steve Skroce (Illustrator), Steve Epting (Illustrator), Salvador Larroca (Illustrator), Roger Cruz (Illustrator)