J. Procureur et Jn. Stamenov, ABOUT THE NECESSITY OF NEW SMALL EAS EXPERIMENTS AT OBSERVATION LEVELS 500-600G CM(-2)/, Nuovo cimento della Societa italiana di fisica. C, Geophysics and space physics, 21(1), 1998, pp. 23-34
New small. EAS experiments at observation levels 500-600 g cm(-2) devo
ted to investigation of the primary mass composition and energy spectr
um at energies 10(4)-10(5) GeV are necessary to carry calibration betw
een the direct (balloons and satellites) and indirect (EAS) methods fo
r primary cosmic flux studies. A new shower selection has to be used i
n the attempt to obtain the possibility to apply compact EAS arrays fo
r unbiased primary mass composition and energy spectrum estimations.