Independence and Consistency Proofs in Quadratic Form Theory. - James E. Baumgartner; Otmar Spinas (J. Symb. Log., 1991)

Dominating Projective Sets in the Baire Space. - Otmar Spinas (Ann. Pure Appl. Log., 1994)

On the structure of Δ14-sets of reals. - Haim Judah; Otmar Spinas (Arch. Math. Log., 1995)

Regularity Properties for Dominating Projective Sets. - Jörg Brendle; Greg Hjorth; Otmar Spinas (Ann. Pure Appl. Log., 1995)

Generic Trees. - Otmar Spinas (J. Symb. Log., 1995)

Large cardinals and projective sets. - Haim Judah; Otmar Spinas (Arch. Math. Log., 1997)

Partition Numbers. - Otmar Spinas (Ann. Pure Appl. Log., 1997)

Meeting infinitely many cells of a partition once. - Heike Mildenberger; Otmar Spinas (Arch. Math. Log., 1998)

Dominating and Unbounded Free Sets. - Slawomir Solecki; Otmar Spinas (J. Symb. Log., 1999)

Countable Filters on Omega. - Otmar Spinas (J. Symb. Log., 1999)

Canonical Behavior of Borel Functions on superperfect Rectangles. - Otmar Spinas (J. Math. Log., 2001)

Analytic countably splitting families. - Otmar Spinas (J. Symb. Log., 2004)

Additivity of the two-dimensional Miller ideal. - Otmar Spinas; Sonja Thiele (Arch. Math. Log., 2010)

Mad spectra. - Saharon Shelah; Otmar Spinas (J. Symb. Log., 2015)

Silver Antichains. - Otmar Spinas; Marek Wyszkowski (J. Symb. Log., 2015)

No Tukey reduction of Lebesgue null to Silver null sets. - Otmar Spinas (J. Math. Log., 2018)

Antichains of perfect and splitting trees. - Paul Hein; Otmar Spinas (Arch. Math. Log., 2020)

Different cofinalities of tree ideals. - Saharon Shelah; Otmar Spinas (Ann. Pure Appl. Log., 2023)

The Covering numbers of some Mycielski ideals May be Different. - Otmar Spinas (J. Symb. Log., 2025)

Different covering numbers of compact tree ideals. - Jelle Mathis Kuiper; Otmar Spinas (Arch. Math. Log., 2025)