METHOD OF CONSTRUCTING UNDERGROUND PIPE LINE von FOMINOV NIKOLAJ G,SU, SUMAROKOV SERGEJ V,SU, ZHIRNYJ ANDREJ E,SU, BALYGIN IGOR S,SU, LUNTOVSKIJ EVGENIJ A,SU, PURIKOV ALEKSANDR S,SU, PERELMITER ALEKSANDR D,SU, ZHOLUDKOV NIKOLAJ N,SU, STASEV VLADIMIR V,SU, GEKHMAN ANATOLIJ S,SU

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PROBE FOR MEASURING PULSE ELECTRIC PULSE POTENTIAL von BURMYKIN IGOR I,SU, LOKTEV OLEG A,SU, FILIPPOV VLADIMIR P,SU, MARCHENKO VLADISLAV B,SU, BALYGIN ANATOLIJ K,SU, GOLYSHKOV ANATOLIJ N,SU, SEMENOV ANATOLIJ K,SU

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