Publications by authors named "JA Helffrich"

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Thermal accommodation of spin-polarized hydrogen on liquid-He surfaces below 0.25 K.
JA Helffrich, MP Maley, M Krusius

Phys Rev B Condens Matter· August 1990

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Limit on nu -bare mass from free-molecular-tritium beta decay.
JF Wilkerson, TJ Bowles, JC Browne, MP Maley, RG Robertson, JA Helffrich

Phys Rev Lett· May 1987

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