CubeOpenCitationRequest request = new CubeOpenCitationRequest();
    request.setPubNum("CN1198134A");
    CubePatentCitationResponse response = CLIENT.execute(request);
                            
                        

                            
    "citation":[
		"DE4119241",
		"DE4336221",
		"WO9527642"
	],
	"citator":[
		"CN101460759B",
		"CN102653271A"
	],
	"success":true
                            
                        

                            
    {
        "citation":[],
        "citator":[],
        "errorCode":"500",
        "msg":"pub num could not be null or empty!",
        "success":false
    }