[1] http://raportroczny2015.pzu.pl/en/content/51-assets-recognized-collateral-receivables-liabilities-and-contingent-liabilities
[2] http://raportroczny2015.pzu.pl/en/content/511-financial-assets-recognized-collateral-liabilities
[3] http://raportroczny2015.pzu.pl/en/content/512-financial-assets-recognized-collateral-granted-loans
[4] http://raportroczny2015.pzu.pl/en/content/513-tangible-assets