Water absorption in novolac epoxy resins studied by positron annihilation T. MIURA, T. SUZUKI, Y. OKI, M. NUMAJIRI, K. KONDO, Y. SHIOMI and Y. ITO J. Phys. IV France, 03 C4 (1993) C4-249-C4-252 DOI: 10.1051/jp4:1993437