1973

1. ARE NEGATIVE IONS GOOD FOR YOU
   Dr Albert Krueger
   New Scientist, 14 June 1973.
2. AEROIONII SI NUCLEII DE CONDENSARE – INDICATORI NESPECIFI DE POLUARE A ATMOSFERI CENTRELOR INDUSTRIALE
   M. Deleanu si N. Radulescu
   Igniena Vol. XXII, No. 10 anul 1973, pp. 609-613.
3. EFFECT OF NEGATIVE AIR IONS UPON EMOTIONALITY AND BRAIN SEROTONIN LEVELS IN ISOLATED RATS
   G.O. Gilbert
   Int. J. Biometeor., 1973, Vol. 17, No.3, pp. 267-275.
4. PHYSIOLOGISCHE WIRKUNG VON LUFTIONEN UND DEREN BEDEUTUNG ALS UMWELTF
   Von Dipl-Ing Andra Varga, Heildelberg
   Naturw. RDSCH. 26 Jahrgang Heft 5 1973, pp. 204-208.
5. VARIATIONS IN MIGRAINE ATTACKS WITH CHANGES IN WEATHER CONDITIONS
   J.D. Gomersall and Alice Stuart
   Int. J. Biometeor., 1973, Vol. 17, No. 3, pp. 285-299.
6. INSTITUTE FOR ATMOSPHERIC ENVIRONMENTAL RESEARCH
   Dr W. Ludwig
   Cleg 8.12. 1973, Int. J. Biometeor., 1973, Vol.17, pp.207-211.
7. IONEMETRY OF HOT DRY DESERT WINDS (KHAMSIN, SHARAV) AND ITS APPLICATION TO IONIZING TREATMENT OF WEATHER – SENSITIVE PATIENTS
   F. G. Sulman and Y. Pfeifer
   Reprinted from Israel Journal of Medicinal Sciences, Vol. 9, No. 5, May 1973. Printed in Israel.
8. ARE NEGATIVE AIR IONS GOOD FOR YOU?
   A.P. Krueger
   New Scientist, June 14, pp. 668-670 (1973).
9. THE EFFECT OF AIR IONS ON PLANTS
   A.P. Krueger, S. Kotaka and E.J. Reed
   Presented at the International Congress, The Sun in the Service of Mankind. July 2-6. Paris, France 1973.
10. PRELIMINARY CONSIDERATION OF THE BIOLOGICAL SIGNIFICANCE OF AIR IONS. THE NATURE OF HUMAN CONCIOUSNESS
    A.P. Krueger
    (Ed.) Robert E. Ornstein, W.H. Freeman and Company, San Francisco, pp. 408-421 (1973).