@misc{mixing+effects+in+the+river+downstream+from+pollution+discharge+point,
    author = {Bielski, Andrzej},
    title = {Mixing effects in the river downstream from pollution discharge point},
    journal = {Technical Transactions},
    address = {Warsaw},
    publisher = {Sciendo},
    date = {2021},
    number = { Vol. 118, iss. 1}
}