"Apiola, Heikki" .
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"Unix ESC introductory guide : environment for scientific computing" .
"Locally convex spaces of p-summable sequences, (p,q)-summing operators and characterizations of nuclearity" .
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"On the tensorproduct and product Hom [f,g] of compact operators in locally convex topological vector spaces" .
"Symbolista ja numeerista matematiikkaa Maple-ohjelmalla" .
"APL alkeisopas" .
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"On tensor products of locally convex A-spaces with applications to [lambda]-nuclearity" .
"Proceedings of the Workshop on Symbolic and Numeric Computing : Helsinki University of Technology 1993" .
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"On multiplicatively stable smooth sequence spaces and permanence of the corresponding [lambda]-nuclearity" .
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"On classes of p-summing operators in Banach lattices" .
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