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- [24] On the half-round Rods. BULLETIN DE LA SOCIETE PREHISTORIQUE FRANCAISE, 1916, 13 (06): : 301 - 307
- [28] SURGE IMPEDANCE OF EXTENDED GROUNDING RODS. Archiv fur Elektrotechnik Berlin, 1985, 68 (05): : 305 - 312
- [30] The buckling load of several fortified rods. ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE, 1902, 46 : 501 - 504