References: S C Koria and S Singh Measurements on local properties of a heterogenerous air/water plume    formed during uptward Injection of gas Steel Research, Vol.60 (1989) No.7, p.301-307             S C Koria and C D Khai Model study on dissolution time of metallic materials in steelmelt Trans. Ind. Inst. Of Metals, Vol.42 (1989) No.1, p.47-54 S C Koria and K W Lange Effect of Melting scrap on the mixing – time of bottom gas stirred melts Proceeding 6th Japan-Germany seminar, Tokyo, Japan (1984) p.91-101. S C Koria Model investigations on liquid velocity induced by submerged gas injection in bsteel  bath Steel Research 59 (1988) No.11, p.484-491 S C Koria Thermodynamic considerations in designing gas injecting lances submerged in melt Ironmaking and Steelmaking 16 (1989) No.1, p.21-27       S C Koria Modelling of submerged gas inecting lance design parameters Steel Research, Vo.60, (1989) No.2, p.60-66. S C Koria and S Singh Experimental investigations on the design of gas injecting lances ISI Japan International, Vo.29 (1989) No.8, p.650-657 S C Koria and S Singh  Measurements on local properties of a heterogenerous air/water plume formed during uptward Injection of gas Steel Research, Vol.60 (1989) No.7, p.301-307      S C Koria and C D Khai Model study on dissolution time of metallic materials in steelmelt Trans. Ind. Inst. Of Metals, Vol.42 (1989) No.1, p.47-54 A.Chakrabarti: Steelmaking A.Ghosh: Secondary steelmaking