PT - JOURNAL ARTICLE AU - Garrett Mattingly TI - Kondratieff 1588 AID - 10.3905/jpm.1980.408747 DP - 1980 Apr 30 TA - The Journal of Portfolio Management PG - 70--71 VI - 6 IP - 3 4099 - https://pm-research.com/content/6/3/70.short 4100 - https://pm-research.com/content/6/3/70.full