TY - JOUR AU - S. Yu. Shishkov TI - Physical meaning of Casimirs of a~four-dimensional ideal fluid JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1991 SP - 110 EP - 112 VL - 87 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1991_87_1_a10/ LA - ru ID - TMF_1991_87_1_a10 ER -