References to the original sparkle model articles, as well as sample MOPAC2009 input and output files.

• Lanthanum
• Cerium
• Praseodymium
• Neodymium
• Promethium
• Samarium
• Europium
• Gadolinium
• Terbium
• Dysprosium
• Holmium
• Erbium
• Thulium
• Ytterbium
• Lutetium