Piknik Naukowy 2013 DSC04439 DSC04438 DSC04454 DSC04443 DSC04448 DSC04458 DSC04460 DSC04461 DSC04464 DSC04465 DSC04468 DSC04469 DSC04472 DSC04478 DSC04493 DSC04485 IMG 1516 IMG 1550 IMG 1552 IMG 1555 IMG 9441 IMG 1556 IMG 9455 OPTO2013: Toruń Gorce 2012