In the latest, sixth number of ‘Energetyka’ you can read the fiftieth edition of Bulletin. 

It contains the following articles:

J. Trzeszczyński: Possibilities and conditions necessary to extend the service life of steam turbines cast steel elements.
J. Dobosiewicz, E. Zbroińska-Szczechura, F. Klepacki: Damages of boilers feeding pipelines system and boilers heating surface pipe coils working below the temperature limit.
W. Brunné: Risk of sudden brittle damages of low- and medium-pressure feed water pipelines.
We invite you to read the Bulletin here (only Polish version).