DFT-based frequency acquisition algorithm for large carrier offsets in mobile satellite receivers von Nezami, M K, Sudhakar, R, Helmken, H

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A three-site comparison of fade-duration measurements von Helmken, H., Henning, R.E., Feil, J., Ippolito, L.J., Mayer, C.E.

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DFT-based frequency acquisition algorithm for largecarrier offsetsin mobile satellite receivers von Nezami, M.K., Sudhakar, R., Helmken, H.

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DFT-based frequency acquisition algorithm for large carrier offsets in mobile satellite receivers von Nezami, M K, Sudhakar, R, Helmken, H

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Estimation of gaseous absorption using surface and radiosonde meteorological measurements von Pollard, R., Helmken, H.

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4U0241+61: a luminous low-redshift QSO von APPARAO, K. M. V, BIGNAMI, G. F, MARASCHI, L, HELMKEN, H, MARGON, B, HJELLMING, R, BRADT, H. V, DOWER, R. G

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HELIOS 2-Vela-Ariel 5 gamma-ray burst source position von Cline, T. L., Desai, U. D., Trainor, J., Pizzichini, G., Spizzichino, A., Klebesadel, R., Ricketts, M., Helmken, H.

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Variability of LMC X-4 von Epstein, A., Delvaille, J., Helmken, H., Murray, S., Schnopper, H. W., Doxsey, R., Primini, F.

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A three-site comparison of fade-duration measurements: Ka-band propagation effects on earth-satellite links von HELMKEN, H, HENNING, R. E, FEIL, J, IPPOLITO, L. J, MAYER, C. E

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Possible X-ray counterparts of γ-ray sources von Maraschi, L, Markert, T, Apparao, K. M. V, Bradt, H, Helmken, H, Wheaton, W, Baity, W. A, Peterson, L. E

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Gamma-ray Observations of the Galactic Centre von HELMKEN, H. F, HOFFMAN, J. A

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X-ray and radio observations of the structure of Abell 478 von Schnopper, H. W., Delvaille, J. P., Epstein, A., Helmken, H., Harris, D. E., Strom, R. G., Clark, G. W., Jernigan, J. G.

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Search for correlations between giant radio-pulses and 1011 eV gamma-rays from NP 0532 von Argyle, E., Baird, G., Grindlay, J., Helmken, H., O’Mongain, E.

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Upper Limits to Gamma Ray Fluxes from Three Pulsating Radio Sources von FAZIO, G. G, HELMKEN, H. F, RIEKE, G. H, WEEKES, T. C

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Acts ka-band propagatton measurements in Florida von Helmken, H., Henning, R.

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Gas-Čerenkov Detector for 10 to 100 MeV Gamma Rays von Helmken, H., Hoffman, J.

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Investigation of gamma rays from the galactic center von Helmken, H. F.

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Performance of a gas-Cherenkov gamma-ray telescope von Koch, D., Ball, S.E., Campbell, M., Delvaille, J.P., Greisen, K., McBreen, B., Fazio, G.G., Hearn, D.R., Helmken, H.F.

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A large area gas Cerenkov telescope for high energy gamma-ray astronomy von Albats, P., Ball, S.E., Delvaille, J.P., Greisen, K.I., Koch, D.G., McBreen, B., Fazio, G.G., Hearn, D.R., Helmken, H.F.

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Vidicon Spark Chamber Detector for Gamma-Ray Astronomy von Helmken, H. F., Fazio, G. G.

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