You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: responseFunction_Bruggeman.m
    path of file: ./repos/HydroSight/algorithms/models/TransferNoise/ResponseFunctions
    
    the code of the file until where you have to start completion: classdef responseFunction_Bruggeman < responseFunction_abstract
% Pearson's type III impulse response transfer function class. 

    properties(GetAccess=public, SetAccess=protected)          
        alpha
        beta
        gamma  
        settings
    end

%%  STATIC METHODS        
% Static methods used by the Graphical User Interface to inform the
% user of the available model options and their
    
function modelDescription = modelDescription()
           modelDescription = {'Name: responseFunction_Bruggeman', ...
                               '', ...               
                               'Purpose: simulation of streamflow lateral flow influence on groundwater head.', ...
                               '', ...               
                               'Number of parameters: 3', ...
                               '', ...               
                               'Options: none', ...
                               '', ...               
                               'Comments: This function has not been rigerouslt tested within the framework. Use with caution!.', ...
                               '', ...               
                               'References: ', ...
                               '1. von Asmuth J.R., Maas K., Bakker M., Petersen J.,(2008), Modeling time series of ground water', ...
                               'head fluctuations subjected to multiple stresses, Ground Water, Jan-Feb;46(1):30-40'};
        end