Szayna, Thomas S.. "Chapter Two: The Planning Context." In NATO Enlargement, 2000-2015: Determinants and Implications for Defense Planning and Shaping, 30. Vol. 1243. Santa Monica, CA: RAND Corporation, 2001.

Szayna, Thomas S.. NATO Enlargement, 2000-2015: Determinants and Implications for Defense Planning and Shaping In MR-1243-AF . Santa Monica, CA: RAND Corporation, 2001.

Szayna, Thomas S.. "NATO Enlargement, 2000-2015: Determinants and Implications for Defense Planning and Shaping.", 56-59. Santa Monica, CA: RAND Corporation, 2001.

Szayna, Thomas S.. NATO Enlargement, 2000-2015: Determinants and Implications for Defense Planning and Shaping. RAND Corporation, 2001.