References
ANONYMOUS, RAUTARUUKKI OY NEARS DECISION TIME AT SOKLI:PHOSPHORUS AND POTASSIUM, NO. 102, JULY/AUGUST, 1979.BRITISH SULPHUR CORP., LTD., WORLD SURVEY OF PHOSPHATEDEPOSITS, 4TH EDITION, 1980, PP. 224-225.ENGINEERING AND MINING JOURNAL. PHOSPHATE. JANUARY 1979,P. 110.INDUSTRIAL MINERALS. FINLAND. PHOSPHATE PROGRESS. JANUARY1977, PP. 10-11.JOHANNESSEN, THOR WERNER, THE CLIMATE OF SCANDINAVIA, IN,CLIMATES OF NORTHERN AND WESTERN EUROPE OF WORLD SURVEY OFCLIMATES, VOL. 5, NEW YORK, 1970.MINING MAGAZINE. EUROPE. FINLAND. JANUARY 1979, P. 71.NOTHOLT, A.G. THE ECONOMIC GEOLOGY AND DEVELOPMENT OFIGNEOUS PHOSPHATE DEPOSITS IN EUROPE AND THE USSR; ECON.GEOL., VOL. 74(2), 1979, PP. 339-350.PAARMA, HEIKKI, A NEW FIND OF CARBONATITE IN NORTH FINLAND,THE SOKLI PLUG IN SAVUKOSKI: LITHOS NO. 3, APRIL 1970,PP. 129-133.RUSSELL, B.G., THE POSSIBLE RECOVERY DURING THE MANUFACTUREOF PHOSPHORIC ACID OF RARE EARTHS FROM FOSKOR CONCENTRATE:SOUTH AFRICAN MINERALS BUREAU, BULLETIN NO. 1, (N.D.)TUOVINEN, RAINER, ASSISTANT DIR., RESEARCH AND DEVELOPMENT,RAUTARUUKKI OY, SPECIAL COMMUNICATION, AUGUST 11, 1981.WHITE, LANE, FINNS CONTINUE CONTRIBUTIONS TO ADVANCING WORLDMINING AND PROCESSING TECHNOLOGY: E. & M.J.,2/77, PP. 65-68.PHOSPHOROUS & POTASSIUM, NO. 144, JULY/AUG., 1986, PP. 13-14PHOSPHOROUS & POTASSIUM, NO. 145, SEPT./OCT., 1986. P. 14GREEN MARKETS, DECEMBER 28, 1987, PP. 1, 7.INDUSTRIAL MINERALS, JANUARY 1988, P. 9.WORLD MINING, FEBRUARY 1988, P.94.GREEN MARKETS, MARCH 28, 1988, P.1.PHOSPHOROUS & POTASSIUM, NO. 154, MARCH/APRIL 1988, P.9.INTERNATIONAL MINING, AUGUST 1988, PP. 123-124.GREEN MARKETS, OCTOBER 10, 1988, P.12.GREEN MARKETS, NOVEMBER 21, 1988, PP. 1,8.PHOSPHOROUS & POTASSIUM, NO. 162, JULY/AUG., 1989, P.14.INDUSTRIAL MINERALS, DECEMBER 1989, P.11.PHOSPHOROUS & POTASSIUM, NO. 165, JANUARY/FEBRUARY, 1990,P.9NOTHOLT, A.G., THE ECONOMIC GEOLOGY AND DEVELOPMENT OFGREEN MARKETS, MAY 25, 1987, P. 4.PHOSPHOROUS & POTASSIUM, NO. 151, SEPTEMBER/OCTOBER, 1987P.10.