Some observations on intuitionistically elementary properties of linear orderings Wim VeldmanMichaƫl Janssen OriginalPaper Pages: 171 - 185
Computability by means of effectively definable schemes and definability via enumerations Ivan N. Soskov OriginalPaper Pages: 187 - 200
Working below a low2 recursively enumerably degree Richard A. ShoreTheodore A. Slaman OriginalPaper Pages: 201 - 211