$a Kp. Magnetic resonance and related phenomena / ed. by E. Kundla, E. Lippmaa and T. Saluvere. - Berlin, 1979. $b (Department of Physics, Institute of Cybernetics of the Academy of Sciences of the Estonian SSR)
670
$a Kp. Âdernyj magnitnyj rezonans vysokogo razrešeniâ v tverdyh telah / U. Heberlen, M. Mering. - Moskva, 1980. $b Tł. z jęz. ang.