|  ZhETF, Vol. 94, 
No. 2,
p. 33 (February 1988)
 (English translation - JETP, 
	Vol. 67, 
	No. 2,
	p. 230,
	February 1988
)
 
 The issue content is only available in english translation.
 
 
 
	Quantum mechanics: problems intermediate between exactly solvable and completely unsolvable
A.V. Turbiner
 
 Received: July 20, 1987
 
 
 
 
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