TransliterationPetrov N. Prakticheskie rezultaty opytov i gidrodinamicheskoy teorii treniya s primeneniem k zheleznym dorogam i bumagopryadilnyam, s tremya prilozheniyami: elementarnogo vyvoda formul, vyrazhayushchikh silu treniya tsapfy i pyaty: opisaniya sposobov i priborov dlya opredeleniya tren
In EnglishPetrov N. Practical results of experiments and hydrodynamic friction theory with application to railways and paper-spinning machines, with three appendices: elementary output of formulas expressing the friction force of stud and heel: descriptions of methods and devices for determining the friction In Russian
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