TY - JOUR T1 - THE LEAPFROG PRINCIPLE - A RULE FOR ELECTRON COUNTS OF CARBON CLUSTERS JO - J CHEM SOC CHEM COMM PY - 1987/09/15 AU - FOWLER PW AU - STEER JI ED - IS - 18 SP - 1403 EP - 1405 Y2 - 2025/04/21 ER -