Named in honor of Mrs. Irmela Ruska, the wife of Ernest Ruska who invented the electron microscope and received the Nobel Prize in 1986. The prize had to be shared with B. Binnig and H. Rohrer. (H 109) _ _.
Avastatud: 13-3-1931 Avastamiskoht: Heidelberg Avastajad: Wolf, M. F.