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ˇ The electron, muon and air-Cerenkov components of air-showers have been studied simultaneously using the SPASE-2, AMANDA and VULCAN experiments at the South Pole. 32000 events observed by SPASE-2 and VULCAN pass all selection cuts. We report the results of our analysis for these events. The high energy (500 GeV) muon content of a subset of these showers will be obtained using the AMANDA-B detector. The combination of muon and Xm information promises a powerful tool for mass composition studies.