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      <subfield code="a">Abellanas Rapún, Lorenzo</subfield>
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      <subfield code="a">Martínez Alonso, Luis</subfield>
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      <subfield code="a">Martínez Ontalba, Celia</subfield>
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      <subfield code="c">1993</subfield>
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      <subfield code="a">We give a positive answer to a question about the existence of any direct link between two apparently unrelated facts for a specific family of solvable Lie algebras: the structure of their modules of functions on one side, and the algebraic form of their Casimir invariants on the other.</subfield>
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