Baltes, P. B., & Mayer, K. U. (1999). Introduction. In P. B. Baltes & K. U. Mayer (Eds.), The Berlin Aging Study: Aging from 70 to 100 (pp. 1–11). Cambridge University Press.

Baltes, P. B., Mayer, K. U., Helmchen, H., & Steinhagen-Thiessen, E. (1999). The Berlin Aging Study (BASE): Sample, design, and overview of measures. In P. B. Baltes & K. U. Mayer (Eds.), The Berlin Aging Study: Aging from 70 to 100 (pp. 15–55). Cambridge University Press.

Baltes, P. B., Mayer, K. U., Helmchen, H., & Steinhagen-Thiessen, E. (1999). Die Berliner Altersstudie (BASE): Überblick und Einführung. In K. U. Mayer & P. B. Baltes (Eds.), Die Berliner Altersstudie (2nd., rev. ed., pp. 21–54). Akademie-Verlag.

Baltes, P. B., & Smith, J. (1999). Multilevel and systemic analyses of old age: Theoretical and empirical evidence for a fourth age. In P. B. Baltes & K. U. Mayer (Eds.), Handbook of theories of aging (pp. 153–173). Springer.

Freund, A. M., Li, K. Z. H., & Baltes, P. B. (1999). Successful development and aging: The role of selection, optimization, and compensation. In J. Brandtstätter & R. M. Lerner (Eds.), Action and self-development: Theory and research through the life span (pp. 401–434). Sage.

Lindenberger, U., Gilberg, R., Little, T. D., Nuthmann, R., Pötter, U., & Baltes, P. B. (1999). Sample selectivity and generalizability of the results of the Berlin Aging Study. In P. B. Baltes & K. U. Mayer (Eds.), The Berlin Aging Study: Aging from 70 to 100 (pp. 56–82). Cambridge University Press.

Lindenberger, U., Gilberg, R., Pötter, U., Little, T. D., & Baltes, P. B. (1999). Stichprobenselektivität und Generalisierbarkeit der Ergebnisse in der Berliner Altersstudie. In K. U. Mayer & P. B. Baltes (Eds.), Die Berliner Altersstudie (2nd., rev. ed., pp. 85–108). Akademie-Verlag.

Mayer, K. U., & Baltes, P. B. (1999). Vorwort. In K. U. Mayer & P. B. Baltes (Eds.), Die Berliner Altersstudie (2nd., rev. ed., pp. 7–16). Akademie-Verlag.

Mayer, K. U., Baltes, P. B., Baltes, M. M., Borchelt, M., Delius, J. A. M., Helmchen, H., Linden, M., Smith, J., Staudinger, U. M., Steinhagen-Thiessen, E., & Wagner, M. (1999). What do we know about old age and aging? Conclusions from the Berlin Aging Study. In P. B. Baltes & K. U. Mayer (Eds.), The Berlin Aging Study: Aging from 70 to 100 (pp. 475–519). Cambridge University Press.

Mayer, K. U., Baltes, P. B., Baltes, M. M., Borchelt, M., Delius, J., Helmchen, H., Linden, M., Smith, J., Staudinger, U. M., Steinhagen-Thiessen, E., & Wagner, M. (1999). Wissen über das Alter(n): Eine Zwischenbilanz der Berliner Altersstudie [Knowledge about age and aging: Conclusions from the Berlin Aging Study]. In K. U. Mayer & P. B. Baltes (Eds.), Die Berliner Altersstudie (2nd., rev. ed., pp. 599–634). Akademie-Verlag.

Smith, J., & Baltes, P. B. (1999). Trends and profiles of psychological functioning in very old age: Anticipating future life goals and managing personal development. In P. B. Baltes & K. U. Mayer (Eds.), The Berlin Aging Study: Aging from 70 to 100 (pp. 197–226). Cambridge University Press.

Smith, J., & Baltes, P. B. (1999). Life-span perspectives on development. In M. H. Bornstein & M. E. Lamb (Eds.), Developmental psychology: An advanced textbook (4th ed., pp. 47–72). Erlbaum.

Baltes, P. B. (1998). L‘avenir du vieillissement d‘un point de vue psychologique: Optimisme et tristesse. In J. Dupâquier (Ed.), L‘espérance de vie sans incapacités (pp. 243–264). Presses Universitaires de France.

Baltes, P. B. (1998). Theoretical propositions of life-span developmental psychology: On the dynamics between growth and decline. In M. P. Lawton & T. A. Salthouse (Eds.), Essential papers on the psychology of aging (pp. 86–123). New York University Press.

Baltes, P. B., Lindenberger, U., & Staudinger, U. M. (1998). Life-span theory in developmental psychology. In W. Damon & R. M. Lerner (Eds.), Handbook of child psychology: Vol. 1. Theoretical models of human development (5th ed., pp. 1029–1143). Wiley.

Baltes, P. B., & Staudinger, U. M. (1998). Wisdom. In H. Friedländer, N. E. Adler, & R. D. Parke (Eds.), Encyclopedia of mental health (Vol. 3, pp. 699–706). Academic Press.

Baltes, M. M., & Baltes, P. B. (1997). Normal versus pathological cognitive functioning in old age: Plasticity and testing-the-limits of cognitive/brain reserve capacity. In F. Forette, Y. Christen, & F. Boller (Eds.), Démences et longévité (pp. 77–101). Foundation Nationale de Gérontologie.

Baltes, P. B. (1997). Gegen Vorurteile und Klischees: "Die Berliner Altersstudie". In H.-U. Klose (Ed.), Alterung und kommunale Politik (pp. 11–20). SPD-Parteivorstand.

Baltes, P. B. (1997). Why the flame of basic research flickers in Germany: The need for reform in German science institutions. In Japan Society for the Promotion of Science; Alexander von Humboldt-Stiftung (Ed.), Basic Research in Japan and Germany: Similarities and differences, current problems and tendencies. Japan - Germany - Symposium. March 13 and 14, 1997 in Bonn (pp. 53–63). JSPS Liaison Office.

Baltes, P. B. (1997). Altern in Leidenschaft: Ein schwieriges viertes Lebensalter? Akademievorlesung am 27. Juni 1996. In Berlin-Brandenburgische Akademie der Wissenschaften (Ed.), Berichte und Abhandlungen/ Berlin-Brandenburgische Akademie der Wissenschaften (Vol. 3, pp. 159–193). Akademie-Verlag.