Gottfried Sum from the Ratio F2n/F2p.
P AMAUDRUZ,M ARNEODO,A ARVIDSON,B BADELEK,G BAUM,J BEAUFAYS,IG BIRD,M BOTJE,C BROGGINI,W BRUCKNER,A BRULL,WJ BURGER,J CIBOROWSKI,R CRITTENDEN,R VANDANTZIG,H DOBBELING,J DOMINGO,J DRINKARD,A DZIERBA,H ENGELIEN,MI FERRERO,L FLURI,P GRAFSTROM,D VONHARRACH,M VANDERHEIJDEN,C HEUSCH,Q INGRAM,A JACHOLKOWSKA,K JANSON,M DEJONG,EM KABUSS,R KAISER,TJ KETEL,F KLEIN,B KORZEN,U KRUNER,S KULLANDER,U LANDGRAF, T LETTENSTROM,T LINDQVIST,GK MALLOT,C MARIOTTI,G VANMIDDELKOOP,Y MIZUNO,J NASSALSKI,D NOWOTNY,N PAVEL,H PESCHEL,C PERONI,B POVH,R RIEGER,K RITH,K ROHRICH,E RONDIO,L ROPELEWSKI,A SANDACZ,C SCHOLZ,R SCHUMACHER,U SENNHAUSER,F SEVER,TA SHIBATA,M SIEBLER,A SIMON,A STAIANO,G TAYLOR,M TREICHEL,JL VUILLEUMIER,T WALCHER,K WELCH,R WINDMOLDERS,F ZETSCHE pubmed（1991）
Key words
parton distributions
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