Meaning Negotiation In Dialogue. - Barbara Lewandowska (COLING, 1982)

Minimal projections onto hyperplanes in vector-valued sequence spaces. - Beata Deregowska; Barbara Lewandowska (J. Approx. Theory, 2015)

Minimal projections onto subspaces generated by sign-matrices. - Beata Deregowska; Barbara Lewandowska; Grzegorz Lewicki (J. Approx. Theory, 2024)