Environmental Problems | Lviv Polytechnic National University

Electrical engineering & Electromechanics | National Technical University "Kharkiv Polytechnic Institute"

St. Petersburg Polytechnical University Journal: Physics and Mathematics | Peter the Great St.Petersburg Polytechnic University

Resource-Efficient Technologies | Tomsk Polytechnic University

Perm Journal of Petroleum and Mining Engineering | Perm National Research Polytechnic University

Ukrainian Journal of Veterinary and Agricultural Sciences | Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnologies Lviv

Kurdistan Journal of Applied Research | Sulaimani Polytechnic University

Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University

Lemberg, Lwów, L'viv, 1914‒1947
著者:: Mick

Magazine of Civil Engineering | Peter the Great St. Petersburg Polytechnic University

Sustainable Development and Engineering Economics | Peter the Great St. Petersburg Polytechnic University

Bulletin of the Polytechnic Institute of Jassy: Constructions, Architechture Section | Sciendo

Mechanics and Advanced Technologies | Igor Sikorsky Kyiv Polytechnic Institute

Innovative Biosystems and Bioengineering | Igor Sikorsky Kyiv Polytechnic Institute

KPI Science News | Igor Sikorsky Kyiv Polytechnic Institute

Transport Problems | Silesian University of Technology

Journal of Education, Management and Development Studies | Camarines Sur Polytechnic Colleges

Machinery & Energetics | National University of Life and Environmental Sciences of Ukraine

The Problem South
著者:: Ring

The Problem of Evil
著者:: Peterson

Embodying the Problem
著者:: Vinson

The Problem with Pilots
著者:: Schultz

Weighty Problems
著者:: Backstrom

Problems of the War

Social Problems

Social Problems

Inverse Problems

Image Problems
著者:: DeCaroli

The Water Problem
著者:: Mulroy

Everybody's Problem
著者:: Hawkins

The Boy Problem
著者:: Grant

Soziale Probleme

Problems of Economics

The problems of philosophy.
著者:: Russell, Bertrand
出版事項: (1912)

X-The Problem of the Negro as a Problem for Thought
著者:: Chandler

Dental and Medical Problems | Wroclaw Medical University

JIP (Jurnal Informatika Polinema) | UPT P2M State Polytechnic of Malang