scientific article published on March 12, 1983

scientific article published on April 1, 1977

scientific article published on 01 July 1973

scientific article published on September 1, 1976

scientific article published on August 1, 1981

scientific article published in May 1980

scientific article published on May 1980

scientific article published on June 1, 1972

scientific article published on April 1, 1976

scientific article published on August 1, 1977

scientific article published on September 1, 1979

scientific article published on June 15, 1978

scientific article published on 01 June 1974

scientific article

scientific article published on 01 March 1973

scientific article

scientific article published on January 1, 1977

scientific article published on September 1, 1978

scientific article published on 01 January 1983

scientific article published on March 1, 1979

scientific article published on January 1, 1976

scientific article published on August 1, 1976

scientific article published on 01 October 1976

scientific article published on August 1, 1983

scientific article published on September 1, 1981

scientific article published on October 15, 1977

scientific article published on April 1, 1979

scientific article published on July 21, 1978

scientific article

scientific article published on November 23, 1978

scientific article published in October 1985

scientific article published on January 1, 1978

scientific article published on 01 February 1983

scientific article

scientific article published on August 1, 1982

scientific article published on April 29, 1976

scientific article published on January 11, 1980

scientific article published on August 1, 1977

scientific article published on September 1, 1978

scientific article published on September 1, 1978

scientific article published on December 1, 1972

scientific article published on February 1, 1978

scientific article published on 01 November 1974

scientific article published on September 1982

scientific article published in February 1974

scientific article published on September 1983

scientific article published on January 1, 1976

scientific article published on May 1, 1977

scientific article published on 01 January 1982

scientific article

scientific article published on September 1, 1983

scientific article published on January 10, 1976

scientific article published on September 1, 1978

scientific article published on September 1, 1977

scientific article published on September 1, 1979

scientific article

scientific article published on January 6, 1979

scientific article published on 01 September 1986

scientific article published on 01 January 1983

scientific article published on July 1, 1975

scientific article published on January 1, 1976

scientific article published on January 1, 1978

scientific article published on October 1, 1979

scientific article published on August 1, 1983

scientific article

scientific article published on March 1985

scientific article published on January 1, 1976

scientific article published on 01 September 1973

scientific article published on September 20, 1974

scientific article

scientific article

scientific article published on December 1983

scientific article published on May 1, 1979

scientific article published on February 9, 1979

scientific article published on December 1, 1978

scientific article published on July 1, 1983

scientific article published on March 1985

scientific article published on 01 May 1984

scientific article published on January 1, 1978

scientific article published on January 1, 1983

scientific article published on November 1, 1981

scientific article

scientific article published on May 1, 1977

scientific article published on 01 September 1982

scientific article published on December 1, 1978

scientific article published on 01 December 1975

scientific article published on November 1972