Eissa, R. P. [رؤوف عيسى] (
Qatar University
, 1987 , Article)
In paper |5| it was established Ilic inajorant w. Bill ex.iinples or a func'lion f £ Zw'were not coiistruclecl. In Illis |)is()er, in llie case of a snioolli closed curve, an example of such a function is constructed.