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Zbl 0584.46024[2] Wawak R.: 
On the Colombeau Product of Distributions. will be published in the proceedings of the conference held in Katowice in June 88. 
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Product of distributions: Nonstandard methods. Zeitschr. Anal. Anw. 7, No. 4 (1988), 347-365. 
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Characterization of the Colombeau product of distributions. Comment. Math. Univ. Carolinae 27 (1986), 377-394. 
MR 0857556