Execute (3): communication with server [mtc-m16b.sid.inpe.br 800] doesn't start (using async value 0) while trying to execute the command:
ReturnReferModel {Journal Article}
errorInfo:
--StartCommunication: communication with server [mtc-m16b.sid.inpe.br 800] doesn't start:
--couldn't open socket: connection refused
    while executing
"socket $host $port"--

    invoked from within
"StartCommunication $serverName $urlibPort $async2 $encodingName"--