Lithuanian Mathematical Journal
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 338-356
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 317-337
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 357-365
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 295-304
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 412-424
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 305-316
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 366-388
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 389-407
Lithuanian Mathematical Journal > 2019 > 59 > 3 > 408-411