A. Watts

Non-reduced optimal observers for time-varying linear systems

A. Watts, W. Mcdaniel, 1975 .

A search for gamma-ray lines from Nova Cygni 1975, Nova Serpentis 1970, and the Crab Nebula

M. Leventhal, A. Watts, C. Maccallum, 1977 .

POSSIBLE GAMMA‐RAY LINE FROM THE CRAB NEBULA

M. Leventhal, A. Watts, C. Maccallum, 1977 .

Possible γ-ray line from the Crab Nebula

M. Leventhal, A. Watts, C. Maccallum, 1977, Nature.