c=1 Liouville Theory Perturbed by the Black-Hole Mass operator

c=1 Matrix Model from String Field Theory

c=1 Matrix Models: Equivalences and Open-Closed String Duality

c=1 String as a Topological Model

c=1 String as the Topological Theory of the Conifold

c=1 String Theory as a Topological G/G Model

c=2 Rational Toroidal Conformal Field Theories via the Gauss Product

c=5/2 Free Fermion Model of WB_{2} Algebra

c>1 Non-Critical Strings and Large-N Matrix Field Theory

Ca II K emission arches

Ca and Mg isotope variations of Paleoproterozoic (˜ Ga) carbonates: Implications for positive δ13C event

CA and S Isotopic Compositions and REE Concentrations in Oldhamite of Five Unequilibrated Enstatite Chondrites

Ca and Ti Isotope Anomalies in Allende HN-3 and Bulk Kakangari

CA and TI Isotopic Compositions of Size-Separated SiC Fractions from the Murchison Meteorite

Ca and Ti Isotopic Ratios in High-Density Graphite Grains from Orgueil

Ca II absorption in the circumstellar disk of β Pictoris.

CA II emission from old red giants in the globular cluster M15

CA II emission in the spectrum of Canopus

CA II emission in the spectrum of gamma Virginis

Ca II Emission Lines in the Twilight Spectrum