SIMULTANEOUS OBSERVATION OF EXTENSIVE AIR SHOWERS AND DEEP-UNDERGROUND MUONS AT THE GRAN-SASSO-LABORATORY / BELLOTTI R; CAFAGNA F; CALICCIO M; DECATALDO G; DEMARZO C; ERRIQUEZ O; FAVUZZI C; GIGLIETTO N; NAPPI E; SPINELLI P; CECCHINI S; FABBRI M; GIACOMELLI G; MANDRIOLI G; MATTEUZZI P; PAL B; PATRIZII L; PREDIERI F; SANZANI GL; SERRA P; SPURIO M; AHLEN S; FICENEC D; HAZEN E; KLEIN S; LEVIN D; MARIN A; STONE JL; SULAK LR; WORSTELL W; BARISH B; COUTU S; HONG J; LIU G; PECK C; SOLIE D; STEELE J; LANE C; STEINBERG R; BATTISTONI G; BILOKON H; BLOISE C; CAMPANA P; CHIARELLA V; FORTI C; GRILLO A; IAROCCI E; MARINI A; PATERA V; REYNOLDSON J; RONGA F; SATTA L; SPINETTI M; VALENTE V; BOWER C; HEINZ R; MUFSON S; PETRAKIS J; MONACELLI P; BERNARDINI P; MANCARELLA G; PALAMARA O; PISTILLI P; SURDO A; LONGO M; MUSSER J; SMITH C; TARLE G; AMBROSIO M; BARBARINO GC; GUARINO F; BALDINI A; BEMPORAD C; FLAMINIO V; GIANNINI G; GRASSI M; PAZZI R; AURIEMMA G; CHRYSICOPOULOU P; DEVINCENZI M; IORI M; LAMANNA E; LIPARI P; MARTELLOTTI G; PETRERA S; PETRILLO L; ROSA G; SCIUBBA A; SEVERI M; GREEN P; WEBB R; BISI V; GIUBELLINO P; CHIESA AM; MASERA M; MONTENO M; RAMELLO L; AGLIETTA M; ALESSANDRO B; BADINO G; BERGAMASCO L; CASTAGNOLI C; CASTELLINA A; CINI G; DETTORREPIAZZOLI B; FULGIONE W; GHIA P; GALEOTTI P; MANNOCCHI G; MORELLO C; NAVARRA G; PERIALE L; PICCHI P; RICCATI L; SAAVEDRA O; TRINCHERO G; VALLANIA P; VERNETTO S. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - 42:5(1990), pp. 1396-1403.