أرسل هذا في رسالة قصيرة: Non-chordal graphs having integral-root chromatic polynomials II

  ______   _    _     _____     _____      _____  
 /_   _// | || | ||  / ____||  |  ___||   / ___// 
 `-| |,-  | || | || / //---`'  | ||__     \___ \\ 
   | ||   | \\_/ || \ \\___    | ||__     /    // 
   |_||    \____//   \_____||  |_____||  /____//  
   `-`'     `---`     `----`   `-----`  `-----`