Because he brings new ideas contrary to the concepts of the psychoanalytic establishment he has been much criticized, causing controversy. Particularly, because his book provided methodology to make a brief analysis of neurotic patients in about 20 to 30 minutes. In many cases, he achieved the cure of his patients in weeks or a couple of years; he also succeeded to improve the behavior of autistic children, in the "Instituto Pestalozzi" in collaboration with Helena Antipoff. Besides the development of his theoretical concepts his book contains sections on the "techniques for the precocious diagnosis and brief therapy of neuroses" and about 132 references on which he based his ideas. He applied this techniques till the very day of his sudden death in 1997, when he had an alleged heart failure while he was closing manually the iron-gate of his house garage.