摘要 : It is, in a way, significant for me that the article of Yakov Ahramovich which was the first I got acquainted with [11 influenced the only paper on which I was working together with my husband [12]. I regretted deeply that I could... 展开 It is, in a way, significant for me that the article of Yakov Ahramovich which was the first I got acquainted with [11 influenced the only paper on which I was working together with my husband [12]. I regretted deeply that I could present this work 1131 only after the death of Yakov Abramovich, at the conference which was devoted to his memory in 199:3. This was 15 years ago. and we are at a Smorodinskv conference again; remarkably, these conferences continue to take place regularly. Yakov Abramovich remains with us who were fortunate to know him, and I am sure that his personality and his results will inspire generations of physicists to come. 收起