28 SOCIAL SCIENTIST 16. S. Strumilin, '0 Tsene "Darovykh Blag" Priroda', Voprosi Ekonomiki, 1967/8, p.60. 17. L. Kassirov, 'Rentnye Otnosheniya i Razvitie Ekonomicheskikh Metodov Khoziaistvovaniya', Ekonomicheskie Nauki, 1974/75, p.55. 18. Ibid. 19. Ibid., p.57. 20. Ibid., p.60. 21. M. Bronshtein, 'The Equalisation of Cost-Accounting Conditions in Agriculture, Problems of Economics, June 1984, p. 76. 22. L. Kassirov, 'Rent Relationships in the Economic Mechanism of Social Production', Problems of Economics, November 1973, p.42. 23. Ibid., p.52. 24. Karl-Eugen Wadekin, Agrarian Policies in Communist Europe, Hague, 1982, p.222. 25. S. Maslennikov and V. Shkatov, 'Plata za prirodnye resursy v evropeisjkikh sotsialistischeskikh stranakh', Vop. Ekon., 1980/10, p.71 26. Ibid. 27. L. Feitei'man, 'Ekonomicheskaya otsenka prirodnykh resursov', Voprosi Ekon., 1980/10, p.64. 28. T.S. Kachaturov, Intensifikatsia i effektivnost' v usioviyakh razvitogo sotsializma, Moscow 1978, p.289. 29. Feitei'man, op. dt, p.66. 30. Ibid., p.67. 31. Ibid. 32. Klaus Ahrends, 'Zur Rentenbewertung von Naturressourcen', WW, 1983/9, p.1345. 33. Ibid./ p.1346. 34. Feitei'man, op. dt., p.67. 35. Ibid.,p.68. 36. K. Ahrends, 'Zur Rentenbewertung...', p.1333. 37. Ibid., p.1335. 38. Ibid. p.1336. 39. Ibid. 40. Ibid. 41. Ibid.p.1337. 42. Ibid. 43. Ibid. 44. T. Khachaturov, 'The Intensification of Land Use', Problems of Economics, February 1986, p.56. 45. Ibid. 46. Rita Kindler, 'Zur okonomischen Bodenbewertung in der Landwirtschaft der DDR', WW, 1985/9, p.1341. 47. Ibid. 48. Ibid., p.1342. 49. Ibid., p.1343. 50. D. Sachse and R. Sachse, 'Zur Bedeutung der Marxischen Rententheorie fur die Losung AktueUer Fragen der Agrarpolitik der SED', WW, 1983/9, p.1309. 51. Ibid., p.1315. 52. Ibid., p. 1313. 53. Klaus Ahrends, 'Zur Gesischte...', p. 48. 54. Sachse and Sachse, op. dt., p. 1314. 55. Ibid. 56. M. Bronshtein, 'The Equalisation of Cost-Accounting Conditions in Agriculture', Problems of Economics, June 1984, p. 76. 57. Ibid. p. 77. 58. E. Czismadia, Socialist Agriculture in Hungary, Budapest ,1977, p.43. 59. M. Bronshtein, 'The Equalisation of Cost-Accounting Conditions in Agriculture', Problems of Economics, June 1984, p. 76. 60. Ibid. p. 77. 61. E. Czismadia, Socialist Agriculture in Hungary, Budapest ,1977, p.43. 62. I. Benet and J. Gyenis (ed.), Economic Studies on Hungarian Agriculture, Budapest, 1977, p.51. 63. Ibid.