PT Journal AU Koehler, T Bluem, P Bueche, G Hancock, AD Koch, H Kreissl, A Poth, H Raich, U Rohmann, D AU u.a. TI Precision measurement of strong interaction isotope effects in antiprotonic ¹⁶O, ¹⁷O, and ¹⁸O atoms SO Physics Letters B PY 1986 BP 327 EP 33 VL 176 LA english ER