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Scientific Journal of the Military University of Land Forces > 2021 > Vol. 53, No. 4(202) > 702--718
Scientific Journal of the Military University of Land Forces > 2021 > Vol. 53, No. 4(202) > 734--751
Polish Journal of Management Studies > 2021 > Vol. 24, No. 2 > 449--467
Polish Journal of Management Studies > 2021 > Vol. 24, No. 1 > 354--372
Polish Journal of Management Studies > 2021 > Vol. 24, No. 1 > 220--235
Polish Journal of Management Studies > 2021 > Vol. 24, No. 2 > 307--320
Polish Journal of Management Studies > 2021 > Vol. 24, No. 2 > 431--448
Journal of Sustainable Mining > 2021 > Vol. 20, iss. 3 > 206--219